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.)
Today’s best flight deals from Boston to Seattle
Explore current cheapest deals departing from Boston to Seattle
Round trip
Sort by: Cheapest
October 3 - October 6
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
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 — 486,190 Searches this Week
Insights for flights from Boston to Seattle
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
Flights from $246
April
Flights from $577
Direct flights from Boston to Seattle
JetBlue Airways
Last-minute flights going from Boston to Seattle
Mon, Jun 29
BOS - Seattle
Boston (BOS) - Seattle (SEA)
United Airlines
$477
$389
One-way
Sat, Jul 4
BOS - Seattle
Boston (BOS) - Seattle (SEA)
JetBlue Airways
$357
$323
One-way
Sat, Jul 11
BOS - Everett
Boston (BOS) - Everett (PAE)
Alaska Airlines, Inc.
$444
$329
One-way
Sat, Jul 11
BOS - Everett
Boston (BOS) - Everett (PAE)
Alaska Airlines, Inc.
$483
$395
One-way
Sun, Jul 12
BOS - Everett
Boston (BOS) - Everett (PAE)
Alaska Airlines, Inc.
$468
$354
One-way
Wed, Jul 15
BOS - Everett
Boston (BOS) - Everett (PAE)
Alaska Airlines, Inc.
$487
$418
One-way
Biggest price drops on these dates for flights from Boston to Seattle
Aug 18 - Aug 21
$507 → $340
33%
Jul 11 - Jul 28
$444 → $329
26%
Jul 12 - Jul 21
$468 → $354
24%
Jul 17 - Jul 20
$498 → $399
20%
Popular Airports to fly from Boston to Seattle
Boston - Seattle route insights
💸 Price insights
Recent fares are below the typical level.
Recent fares from Boston to Seattle are below the typical level, with deals around $255.
📅 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.
⏱️ Flight duration
Flights to Seattle typically take 11h 47m.
The median flight duration from Boston to Seattle is 11 hours and 47 minutes.
✈️ Airlines & availability
67.1% of deals are for direct flights.
Most deals are for direct flights. Connecting flights typically have 2 stopovers.
🏆 Airline highlight
JetBlue Airways offers direct flights.
JetBlue Airways has offered direct flights from Boston to Seattle historically.
🎯 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)
Logan International Airport is a convenient option for flights from Boston to Seattle.
📍 ~5 km from Boston (reachable by car or public transport)
💸 Flights from ~$255
Seattle main airports to arrive at
Seattle–Tacoma International (SEA)
Seattle–Tacoma International is a primary arrival airport for flights from Boston to Seattle.
📍 ~20 km from Seattle city center (reachable by car)
💸 Flights from ~$255
Boeing Field (BFI)
Boeing Field offers an alternative arrival option for flights from Boston to Seattle.
📍 ~10 km from Seattle city center (reachable by car)
💸 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.
📍 ~3 km from Seattle city center (reachable by car)
💸 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.
📍 ~35 km from Seattle (reachable by car)
💸 Flights from ~$319
Portland International (PDX)
Portland International is a major hub that can offer competitive fares and a comprehensive route network.
📍 ~230 km from Seattle (reachable by car or train)
💸 Flights from ~$200
Vancouver International (YVR)
Vancouver International is a major international gateway with extensive flight options, potentially offering lower fares.
📍 ~230 km from Seattle (reachable by car, requires border crossing)
💸 Flights from ~$277
Bellingham International (BLI)
Bellingham International is a primary low-cost carrier airport, often featuring budget-friendly fares.
📍 ~145 km from Seattle (reachable by car)
💸 Flights from ~$387
Abbotsford International (YXX)
Abbotsford International can be an alternative low-cost gateway for Canadian domestic connections.
📍 ~165 km from Seattle (reachable by car, requires border crossing)
💸 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