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FlightsFrom Boston

To Seattle

Cheap Flights from Boston to Seattle

Browse current best options from Boston. Become a member to unlock all deals and get alerts when new deals appear.

Deals from

Boston

RatePunk searches hundreds of travel sites at once for deals on flights to Seattle

Prices updated 24 days ago

486,190 searches this week

171 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated May 29, 2026.)

Todayโ€™s best flight deals from Boston to Seattle

Explore current cheapest deals departing from Boston to Seattle

October 3 - October 6

Cheapest
Best

BOS - Seattle

$334

$255

Round trip

September 22 - September 29

BOS - Seattle

$318

$256

Round trip

September 2 - September 5

BOS - Seattle

$309

$258

Round trip

September 22 - September 30

BOS - Seattle

$310

$264

Round trip

September 22 - September 28

BOS - Seattle

$318

$271

Round trip

August 12 - August 26

Earliest

BOS - Seattle

$287

$272

Round trip

September 9 - September 15

BOS - Seattle

$304

$272

Round trip

September 12 - September 15

BOS - Seattle

$317

$272

Round trip

September 2 - September 9

BOS - Seattle

$299

$272

Round trip

October 3 - October 5

BOS - Seattle

$333

$272

Round trip

Unlock all 500+ flight deals to Seattle and get alerts when great deals appear

Route Intelligence โ€” 486,190 Searches this Week

Insights for flights from Boston to Seattle

A typical journey from Boston to Seattle takes about 11h 47m, including connections. Given that a meaningful share of itineraries on this route include stopovers, this duration reflects the overall travel experience. This route is classified as long-haul, covering a distance of 4006 kilometers.
For travelers seeking cheap flights from Boston to Seattle, fares right now are above the typical level. Prices for this route typically range from $307โ€“$504, with a median of $347. Currently, 0% of recent fares are classified as a good price. New deals appear almost daily, suggesting frequent opportunities to find better prices.
When is the cheapest time to fly from Boston to Seattle? The data indicates that January is typically the most affordable month, with a median fare of $246. Other cost-effective months include May, with a median fare of $297, and March, where the median fare is $303.
Regarding direct flights from Boston to Seattle, 67.1% of recent fares are non-stop. This means a meaningful share are non-stop, while the remaining itineraries typically involve 2 connections. Travelers have a good chance of finding both direct and connecting options for this route.

How much is a round trip from Boston to Seattle

Regular price: $282 - $392

Prices for flights from Boston to Seattle are currently below the regular range.

The regular price range for flights from Boston to Seattle is between $282 and $392. The current lowest deal is $255 with JetBlue Airways, for travel from Oct 3 to Oct 6.

now $255

Low $282

High $392

The cheapest time to fly from Boston to Seattle

The cheapest month to fly from Boston to Seattle is January, with a median price of $246. The most expensive month is April, with a median price of $577. Prices are generally lower from January to November.

January

Cheapest

Flights from $246

April

Most Expensive

Flights from $577

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Direct flights from Boston to Seattle

Airline logo

JetBlue Airways

Last-minute flights going from Boston to Seattle

Mon, Jun 29

โŒ› Last-Minute

BOS - Seattle

United Airlines

Boston (BOS) - Seattle (SEA)

United Airlines

$477

$389

One-way

Sat, Jul 4

โŒ› Last-Minute

BOS - Seattle

JetBlue Airways

Boston (BOS) - Seattle (SEA)

JetBlue Airways

$357

$323

One-way

Sat, Jul 11

โŒ› Last-Minute

BOS - Everett

Alaska Airlines, Inc.

Boston (BOS) - Everett (PAE)

Alaska Airlines, Inc.

$444

$329

One-way

Sat, Jul 11

โŒ› Last-Minute

BOS - Everett

Alaska Airlines, Inc.

Boston (BOS) - Everett (PAE)

Alaska Airlines, Inc.

$483

$395

One-way

Sun, Jul 12

โŒ› Last-Minute

BOS - Everett

Alaska Airlines, Inc.

Boston (BOS) - Everett (PAE)

Alaska Airlines, Inc.

$468

$354

One-way

Wed, Jul 15

โŒ› Last-Minute

BOS - Everett

Alaska Airlines, Inc.

Boston (BOS) - Everett (PAE)

Alaska Airlines, Inc.

$487

$418

One-way

Biggest price drops on these dates for flights from Boston to Seattle

3 nights

Aug 18 - Aug 21

$507ย ย โ†’ย ย $340

33%

17 nights

Jul 11 - Jul 28

$444ย ย โ†’ย ย $329

26%

9 nights

Jul 12 - Jul 21

$468ย ย โ†’ย ย $354

24%

3 nights

Jul 17 - Jul 20

$498ย ย โ†’ย ย $399

20%

Popular Airports to fly from Boston to Seattle

Boston - Seattle route insights

๐Ÿ’ธ Price insights

Recent fares are below the typical level.

Recent fares from Boston to Seattle are below the typical level, with deals around $255.

๐Ÿ“… Best time to fly

January is historically the cheapest month to fly.

Historically, January is the cheapest month to fly, with a median price of $246.

โฑ๏ธ Flight duration

Flights to Seattle typically take 11h 47m.

The median flight duration from Boston to Seattle is 11 hours and 47 minutes.

โœˆ๏ธ Airlines & availability

67.1% of deals are for direct flights.

Most deals are for direct flights. Connecting flights typically have 2 stopovers.

๐Ÿ† Airline highlight

JetBlue Airways offers direct flights.

JetBlue Airways has offered direct flights from Boston to Seattle historically.

๐ŸŽฏ Booking tip

Deals appear frequently, over 1 per day.

Deals for flights from Boston to Seattle appear frequently, more than once per day.

Boston main airports to depart from

Logan International (BOS)

Cheapest

Logan International Airport is a convenient option for flights from Boston to Seattle.

๐Ÿ“ ~5 km from Boston (reachable by car or public transport)

๐Ÿ’ธ Flights from ~$255

Seattle main airports to arrive at

Seattleโ€“Tacoma International (SEA)

Cheapest

Seattleโ€“Tacoma International is a primary arrival airport for flights from Boston to Seattle.

๐Ÿ“ ~20 km from Seattle city center (reachable by car)

๐Ÿ’ธ Flights from ~$255

Boeing Field (BFI)

Boeing Field offers an alternative arrival option for flights from Boston to Seattle.

๐Ÿ“ ~10 km from Seattle city center (reachable by car)

๐Ÿ’ธ Flights from ~$741

Kenmore Air Harbor Seaplane Base (LKE)

Kenmore Air Harbor Seaplane Base provides a unique arrival point for flights from Boston to Seattle.

๐Ÿ“ ~3 km from Seattle city center (reachable by car)

๐Ÿ’ธ Flights from ~$789

Airports nearby Seattle used as alternative

Paine Field Everett (PAE)

Consider Paine Field Everett for a convenient alternative within the Seattle area, especially for North-end residents.

๐Ÿ“ ~35 km from Seattle (reachable by car)

๐Ÿ’ธ Flights from ~$319

Portland International (PDX)

Cheapest

Portland International is a major hub that can offer competitive fares and a comprehensive route network.

๐Ÿ“ ~230 km from Seattle (reachable by car or train)

๐Ÿ’ธ Flights from ~$200

Vancouver International (YVR)

Vancouver International is a major international gateway with extensive flight options, potentially offering lower fares.

๐Ÿ“ ~230 km from Seattle (reachable by car, requires border crossing)

๐Ÿ’ธ Flights from ~$277

Bellingham International (BLI)

Bellingham International is a primary low-cost carrier airport, often featuring budget-friendly fares.

๐Ÿ“ ~145 km from Seattle (reachable by car)

๐Ÿ’ธ Flights from ~$387

Abbotsford International (YXX)

Abbotsford International can be an alternative low-cost gateway for Canadian domestic connections.

๐Ÿ“ ~165 km from Seattle (reachable by car, requires border crossing)

๐Ÿ’ธ Flights from ~$290

Business & First Class Flight Deals to Seattle

Discover luxury on the budget with premium cabin class on flights from Boston to Seattle.

Elite

Best Elite deals to Seattle

Exclusive daily First Class, Business Class, and Premium Economy flight deals, refreshed every 24 hours.

From BOS

Elite

Jul 06

Seattle, United States

90% AI deal score

$1,325

$778

Save $547

From BOS

Elite

Jun 30

Seattle, United States

89% AI deal score

$1,231

$764

Save $467

From BOS

Elite

Jun 27

Seattle, United States

89% AI deal score

$1,333

$813

Save $520

From BOS

Elite

Jun 28

Seattle, United States

89% AI deal score

$1,325

$813

Save $512

From BOS

Elite

Jul 08

Seattle, United States

89% AI deal score

$1,310

$816

Save $494

From BOS

Elite

Jun 26

Seattle, United States

89% AI deal score

$1,373

$853

Save $520

From BOS

Elite

Aug 18

Seattle, United States

89% AI deal score

$1,617

$1,072

Save $545

From BOS

Elite

Jun 30

Seattle, United States

88% AI deal score

$1,459

$717

Save $742

From BOS

Elite

Jun 30

Seattle, United States

88% AI deal score

$1,244

$806

Save $438

From BOS

Elite

Jun 29

Seattle, United States

88% AI deal score

$1,258

$813

Save $445

From BOS

Elite

Jun 27

Seattle, United States

88% AI deal score

$1,324

$855

Save $469

From BOS

Elite

Jun 28

Seattle, United States

88% AI deal score

$1,316

$855

Save $461

From BOS

Elite

Jul 06

Seattle, United States

88% AI deal score

$1,330

$882

Save $448

From BOS

Elite

Jun 26

Seattle, United States

88% AI deal score

$1,374

$895

Save $479

From BOS

Elite

Jun 27

Seattle, United States

87% AI deal score

$1,477

$768

Save $709

From BOS

Elite

Jun 28

Seattle, United States

87% AI deal score

$1,468

$768

Save $700

From BOS

Elite

Jun 29

Seattle, United States

87% AI deal score

$1,260

$855

Save $405

From BOS

Elite

Jun 27

Seattle, United States

87% AI deal score

$1,334

$920

Save $414

From BOS

Elite

Jun 27

Seattle, United States

87% AI deal score

$1,333

$920

Save $413

From BOS

Elite

Jun 25

Seattle, United States

87% AI deal score

$1,449

$1,000

Save $449

From BOS

Elite

Sep 30

Seattle, United States

87% AI deal score

$1,501

$1,069

Save $432

From BOS

Elite

Oct 23

Seattle, United States

87% AI deal score

$1,481

$1,079

Save $402

From BOS

Elite

Aug 25

Seattle, United States

87% AI deal score

$1,577

$1,117

Save $460

From BOS

Elite

Nov 10

Seattle, United States

86% AI deal score

$1,455

$1,202

Save $253

From BOS

Elite

Jul 07

Seattle, United States

86% AI deal score

$1,311

$710

Save $601

From BOS

Elite

Jun 29

Seattle, United States

86% AI deal score

$1,464

$768

Save $696

From BOS

Elite

Jun 26

Seattle, United States

86% AI deal score

$1,492

$808

Save $684

From BOS

Elite

Jun 30

Seattle, United States

86% AI deal score

$1,243

$872

Save $371

From BOS

Elite

Jun 30

Seattle, United States

86% AI deal score

$1,231

$872

Save $359

From BOS

Elite

Jun 28

Seattle, United States

86% AI deal score

$1,316

$920

Save $396

From BOS

Elite

Jun 26

Seattle, United States

86% AI deal score

$1,373

$960

Save $413

From BOS

Elite

Jun 26

Seattle, United States

86% AI deal score

$1,373

$960

Save $413

From BOS

Elite

Sep 19

Seattle, United States

86% AI deal score

$1,416

$1,025

Save $391

From BOS

Elite

Sep 05

Seattle, United States

86% AI deal score

$1,372

$1,025

Save $347

From BOS

Elite

Oct 01

Seattle, United States

86% AI deal score

$1,492

$1,096

Save $396

From BOS

Elite

Aug 21

Seattle, United States

86% AI deal score

$1,592

$1,193

Save $399

From BOS

Elite

Jul 07

Seattle, United States

85% AI deal score

$1,095

$816

Save $279

From BOS

Elite

Jun 29

Seattle, United States

85% AI deal score

$1,249

$920

Save $329

From BOS

Elite

Jun 29

Seattle, United States

85% AI deal score

$1,249

$920

Save $329

From BOS

Elite

Aug 04

Seattle, United States

85% AI deal score

$1,585

$1,051

Save $534

From BOS

Elite

Sep 10

Seattle, United States

85% AI deal score

$1,392

$1,072

Save $320

From BOS

Elite

Nov 12

Seattle, United States

85% AI deal score

$1,400

$1,079

Save $321

From BOS

Elite

Oct 03

Seattle, United States

84% AI deal score

$1,457

$1,025

Save $432

From BOS

Elite

Aug 22

Seattle, United States

84% AI deal score

$1,598

$1,107

Save $491

From BOS

Elite

Jul 06

Seattle, United States

83% AI deal score

$1,095

$882

Save $213

From BOS

Elite

Dec 25

Seattle, United States

83% AI deal score

$1,667

$1,220

Save $447

From BOS

Elite

Dec 25

Seattle, United States

82% AI deal score

$2,010

$1,527

Save $483

From BOS

Elite

Jul 08

Seattle, United States

82% AI deal score

$1,086

$922

Save $164

From BOS

Elite

Jul 08

Seattle, United States

82% AI deal score

$1,095

$922

Save $173

From BOS

Elite

Sep 15

Seattle, United States

82% AI deal score

$1,388

$1,030

Save $358

From BOS

Elite

Sep 10

Seattle, United States

80% AI deal score

$1,377

$1,099

Save $278

From BOS

Elite

Sep 02

Seattle, United States

79% AI deal score

$1,602

$1,358

Save $244

From BOS

Elite

Aug 26

Seattle, United States

79% AI deal score

$1,437

$1,264

Save $173

From BOS

Elite

Sep 29

Seattle, United States

78% AI deal score

$1,528

$1,347

Save $181

From BOS

Elite

Sep 01

Seattle, United States

78% AI deal score

$1,558

$1,347

Save $211

From BOS

Elite

Sep 29

Seattle, United States

78% AI deal score

$1,528

$1,348

Save $180

From BOS

Elite

Sep 29

Seattle, United States

78% AI deal score

$1,528

$1,348

Save $180

From BOS

Elite

Sep 09

Seattle, United States

78% AI deal score

$1,610

$1,382

Save $228

From BOS

Elite

Sep 02

Seattle, United States

78% AI deal score

$1,573

$1,382

Save $191

From BOS

Elite

Sep 30

Seattle, United States

78% AI deal score

$1,512

$1,382

Save $130

From BOS

Elite

Jul 04

Seattle, United States

78% AI deal score

$1,321

$1,209

Save $112

From BOS

Elite

Sep 25

Seattle, United States

77% AI deal score

$1,523

$1,382

Save $141

From BOS

Elite

Sep 02

Seattle, United States

77% AI deal score

$1,522

$1,382

Save $140

From BOS

Elite

Sep 09

Seattle, United States

77% AI deal score

$1,521

$1,382

Save $139

From BOS

Elite

Sep 29

Seattle, United States

77% AI deal score

$1,528

$1,382

Save $146

From BOS

Elite

Sep 01

Seattle, United States

77% AI deal score

$1,533

$1,382

Save $151

From BOS

Elite

Sep 25

Seattle, United States

77% AI deal score

$1,523

$1,383

Save $140

From BOS

Elite

Sep 25

Seattle, United States

77% AI deal score

$1,528

$1,383

Save $145

From BOS

Elite

Sep 29

Seattle, United States

77% AI deal score

$1,528

$1,384

Save $144

From BOS

Elite

Aug 29

Seattle, United States

77% AI deal score

$1,242

$1,175

Save $67

From BOS

Elite

Oct 06

Seattle, United States

77% AI deal score

$1,421

$1,347

Save $74

From BOS

Elite

Sep 29

Seattle, United States

77% AI deal score

$1,506

$1,382

Save $124

From BOS

Elite

Jul 04

Seattle, United States

77% AI deal score

$1,294

$1,209

Save $85

From BOS

Elite

Oct 06

Seattle, United States

76% AI deal score

$1,441

$1,347

Save $94

From BOS

Elite

Oct 06

Seattle, United States

76% AI deal score

$1,428

$1,348

Save $80

From BOS

Elite

Oct 06

Seattle, United States

76% AI deal score

$1,439

$1,348

Save $91

From BOS

Elite

Oct 06

Seattle, United States

76% AI deal score

$1,454

$1,382

Save $72

From BOS

Elite

Sep 01

Seattle, United States

76% AI deal score

$1,484

$1,382

Save $102

From BOS

Elite

Oct 06

Seattle, United States

76% AI deal score

$1,390

$1,347

Save $43

From BOS

Elite

Sep 12

Seattle, United States

76% AI deal score

$1,395

$1,101

Save $294

From BOS

Elite

Aug 11

Seattle, United States

76% AI deal score

$1,567

$1,253

Save $314

From BOS

Elite

Jun 28

Seattle, United States

76% AI deal score

$1,463

$1,276

Save $187

From BOS

Elite

Oct 06

Seattle, United States

75% AI deal score

$1,438

$1,384

Save $54

From BOS

Elite

Sep 16

Seattle, United States

75% AI deal score

$1,829

$1,467

Save $362

From BOS

Elite

Sep 30

Seattle, United States

75% AI deal score

$1,357

$1,347

Save $10

From BOS

Elite

Sep 29

Seattle, United States

75% AI deal score

$1,359

$1,347

Save $12

From BOS

Elite

Sep 30

Seattle, United States

75% AI deal score

$1,362

$1,347

Save $15

From BOS

Elite

Oct 06

Seattle, United States

75% AI deal score

$1,412

$1,382

Save $30

From BOS

Elite

Sep 08

Seattle, United States

74% AI deal score

$1,946

$1,630

Save $316

From BOS

Elite

Sep 30

Seattle, United States

74% AI deal score

$1,355

$1,347

Save $8

From BOS

Elite

Sep 29

Seattle, United States

74% AI deal score

$1,348

$1,347

Save $1

From BOS

Elite

Sep 02

Seattle, United States

74% AI deal score

$1,354

From BOS

Elite

Sep 01

Seattle, United States

74% AI deal score

$1,355

$1,354

Save $1

From BOS

Elite

Oct 02

Seattle, United States

74% AI deal score

$1,387

$1,382

Save $5

From BOS

Elite

Oct 02

Seattle, United States

74% AI deal score

$1,391

$1,382

Save $9

From BOS

Elite

Sep 25

Seattle, United States

74% AI deal score

$1,382

From BOS

Elite

Sep 25

Seattle, United States

74% AI deal score

$1,382

From BOS

Elite

Oct 02

Seattle, United States

74% AI deal score

$1,391

$1,382

Save $9

From BOS

Elite

Sep 02

Seattle, United States

74% AI deal score

$1,382

From BOS

Elite

Sep 30

Seattle, United States

74% AI deal score

$1,382

Frequently Asked Questions About Flights to Seattle

Historically, the optimal time to purchase tickets for flights from Boston to Seattle is typically between 28 and 59 days before departure. During this period, the average price was around $363. Prices tend to increase significantly for last-minute bookings, with flights purchased 0-6 days out averaging $962. For those planning further ahead, tickets bought 60+ days in advance had an average price of $480.

Across the trailing quarter, a good price for a flight from Boston to Seattle was considered to be $307 or less. The median price for this route during the trailing 90 days was $347. Prices above $504 were in the higher range for this route. Travelers aiming for a good deal should target prices at or below the $307 threshold.

Historically, the cheapest month to fly from Boston to Seattle has been January, with a median price of $246. Other historically inexpensive months include May, with a median price of $297, and March, with a median price of $303. The annual median price for this route across the trailing 270 days was $347, indicating that these months offer notable savings.