Cheap Flights from Seattle to Washington, D.C.
Browse current best options from Seattle. Become a member to unlock all deals and get alerts when new deals appear.
Deals from
Seattle
RatePunk searches hundreds of travel sites at once for deals on flights to Washington, D.C.
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 Seattle to Washington, D.C.
Explore current cheapest deals departing from Seattle to Washington, D.C.
Round trip
Sort by: Cheapest
September 22 - September 30
SEA - Washington, D.C.
$269
$226
Round trip
August 26 - August 31
SEA - Washington, D.C.
$301
$227
Round trip
September 15 - September 22
SEA - Washington, D.C.
$271
$228
Round trip
October 20 - October 24
SEA - Washington, D.C.
$287
$228
Round trip
September 22 - September 30
SEA - Washington, D.C.
$241
$237
Round trip
September 23 - September 27
SEA - Washington, D.C.
$256
$237
Round trip
September 23 - September 30
SEA - Washington, D.C.
$251
$237
Round trip
September 17 - September 21
SEA - Washington, D.C.
$247
$237
Round trip
September 14 - September 26
SEA - Washington, D.C.
$222
$239
Round trip
August 25 - August 31
SEA - Washington, D.C.
$304
$245
Round trip
Unlock all 500+ flight deals to Washington, D.C. and get alerts when great deals appear
Route Intelligence — 486,190 Searches this Week
Insights for flights from Seattle to Washington, D.C.
How much is a round trip from Seattle to Washington, D.C.
Regular price: $230 - $368
Prices for flights from Seattle to Washington, D.C. are currently below the regular range.
The regular price range for flights from Seattle to Washington, D.C. is between $230 and $368. The current lowest deal is $226 with American Airlines, for travel from September 22 to September 30.
now $226
Low $230
High $368
The cheapest time to fly from Seattle to Washington, D.C.
The cheapest month to fly from Seattle to Washington, D.C. is October, with a median price of $215. The most expensive month is June, with a median price of $466. Prices are generally lower from January to December.
October
Flights from $215
June
Flights from $466
Direct flights from Seattle to Washington, D.C.
Alaska Airlines, Inc.
Last-minute flights going from Seattle to Washington, D.C.
Wed, Jul 8
SEA - Washington, D.C.
Seattle (SEA) - Washington, D.C. (DCA)
Frontier Airlines
$322
$246
One-way
Wed, Jul 8
SEA - Washington, D.C.
Seattle (SEA) - Washington, D.C. (DCA)
Frontier Airlines
$331
$246
One-way
Thu, Jul 9
SEA - Washington, D.C.
Seattle (SEA) - Washington, D.C. (DCA)
Frontier Airlines
$330
$246
One-way
Thu, Jul 9
SEA - Washington, D.C.
Seattle (SEA) - Washington, D.C. (DCA)
Frontier Airlines
$329
$246
One-way
Fri, Jul 10
SEA - Washington, D.C.
Seattle (SEA) - Washington, D.C. (DCA)
Frontier Airlines
$325
$246
One-way
Fri, Jul 10
SEA - Washington, D.C.
Seattle (SEA) - Washington, D.C. (DCA)
Alaska Airlines, Inc.
$278
$255
One-way
Biggest price drops on these dates for flights from Seattle to Washington, D.C.
Aug 7 - Aug 10
$345 → $246
29%
Aug 21 - Aug 24
$341 → $246
28%
Aug 14 - Aug 17
$341 → $246
28%
Aug 28 - Aug 31
$341 → $246
28%
Popular Airports to fly from Seattle to Washington, D.C.
Seattle - Washington, D.C. route insights
💸 Price insights
Recent fares are near the typical level
Recent fares for Seattle to Washington, D.C. are near the typical level, with deals from $245.
📅 Best time to fly
Fly in October for the best prices
Historically, October is the cheapest month to fly, with a median price of $215.
⏱️ Flight duration
Flights typically take 9h 30m
The median flight duration from Seattle to Washington, D.C. is 9h 30m.
✈️ Airlines & availability
Connecting flights are more common
About 35.9% of recent deals are for direct flights, with connecting flights having 1 stopover.
🏆 Airline highlight
American Airlines offers a recent deal
A recent deal for $226 was found on American Airlines for September 22-30.
🎯 Booking tip
Deals are frequent for this route
This route typically sees frequent deals, with over 1 deal per day in the last 30 days.
Seattle main airports to depart from
Seattle–Tacoma International (SEA)
Seattle–Tacoma International Airport is a primary departure point for flights from Seattle to Washington, D.C.
📍 ~20 km from Seattle (reachable by car or train)
💸 Flights from ~$226
Boeing Field (BFI)
Boeing Field offers an alternative departure option for travelers flying from Seattle to Washington, D.C.
📍 ~10 km from Seattle (reachable by car)
💸 Flights from ~$723
Kenmore Air Harbor Seaplane Base (LKE)
Kenmore Air Harbor Seaplane Base provides a unique departure experience from Seattle to Washington, D.C.
📍 ~5 km from Seattle (reachable by car)
💸 Flights from ~$1102
Washington, D.C. main airports to arrive at
Baltimore–Washington International (BWI)
Baltimore–Washington International is a good option for flights from Seattle to Washington, D.C.
📍 ~40 km from Washington, D.C. city center
💸 Flights from ~$226
Ronald Reagan Washington National (DCA)
Ronald Reagan Washington National is a convenient arrival airport for flights from Seattle to Washington, D.C.
📍 ~5 km from Washington, D.C. city center
💸 Flights from ~$246
Washington Dulles International (IAD)
Washington Dulles International is an arrival option for flights from Seattle to Washington, D.C.
📍 ~40 km from Washington, D.C. city center
💸 Flights from ~$237
Airports nearby Washington, D.C. used as alternative
Philadelphia International (PHL)
Philadelphia International is a major international hub, often a viable alternative for trans-Atlantic routes.
📍 ~200 km from Washington, D.C. (reachable by high-speed Amtrak rail service)
💸 Flights from ~$231
Richmond International (RIC)
Richmond International is the largest airport in Virginia outside the immediate D.C. metro area.
📍 ~150 km from Washington, D.C. (reachable by car)
💸 Flights from ~$298
Harrisburg International (MDT)
Harrisburg International is a convenient alternative for travelers in the northern D.C. suburbs or Maryland.
📍 ~150 km from Washington, D.C. (reachable by car)
💸 Flights from ~$307
Norfolk International (ORF)
Norfolk International offers significant passenger volume and good availability of flights to major hubs.
📍 ~290 km from Washington, D.C. (reachable by car)
💸 Flights from ~$300
Charlottesville–Albemarle (CHO)
Charlottesville–Albemarle provides reliable regional service with connections to major hubs.
📍 ~160 km from Washington, D.C. (reachable by car)
💸 Flights from ~$428
Business & First Class Flight Deals to Washington, D.C.
Discover luxury on the budget with premium cabin class on flights from Seattle to Washington, D.C..
Elite
Best Elite deals to Washington, D.C.
Exclusive daily First Class, Business Class, and Premium Economy flight deals, refreshed every 24 hours.
From SEA
Elite
Nov 07
Washington, D.C., United States
91% AI deal score
$1,874
$1,109
Save $765
From SEA
Elite
Dec 05
Washington, D.C., United States
91% AI deal score
$1,880
$1,109
Save $771
From SEA
Elite
Oct 31
Washington, D.C., United States
90% AI deal score
$1,761
$1,109
Save $652
From SEA
Elite
Sep 14
Washington, D.C., United States
89% AI deal score
$1,668
$1,009
Save $659
From SEA
Elite
Aug 25
Washington, D.C., United States
88% AI deal score
$1,518
$1,085
Save $433
From SEA
Elite
Sep 09
Washington, D.C., United States
87% AI deal score
$1,679
$1,165
Save $514
From SEA
Elite
Sep 09
Washington, D.C., United States
87% AI deal score
$1,803
$1,205
Save $598
From SEA
Elite
Sep 23
Washington, D.C., United States
87% AI deal score
$1,809
$1,226
Save $583
From SEA
Elite
Sep 15
Washington, D.C., United States
87% AI deal score
$1,811
$1,226
Save $585
From SEA
Elite
Sep 15
Washington, D.C., United States
86% AI deal score
$1,661
$1,205
Save $456
From SEA
Elite
Sep 09
Washington, D.C., United States
86% AI deal score
$1,669
$1,205
Save $464
From SEA
Elite
Sep 15
Washington, D.C., United States
86% AI deal score
$1,649
$1,205
Save $444
From SEA
Elite
Sep 15
Washington, D.C., United States
86% AI deal score
$1,675
$1,205
Save $470
From SEA
Elite
Sep 17
Washington, D.C., United States
86% AI deal score
$1,726
$1,205
Save $521
From SEA
Elite
Sep 15
Washington, D.C., United States
86% AI deal score
$1,726
$1,205
Save $521
From SEA
Elite
Sep 09
Washington, D.C., United States
86% AI deal score
$1,670
$1,205
Save $465
From SEA
Elite
Sep 09
Washington, D.C., United States
86% AI deal score
$1,674
$1,205
Save $469
From SEA
Elite
Sep 09
Washington, D.C., United States
86% AI deal score
$1,697
$1,205
Save $492
From SEA
Elite
Sep 09
Washington, D.C., United States
86% AI deal score
$1,647
$1,205
Save $442
From SEA
Elite
Sep 09
Washington, D.C., United States
86% AI deal score
$1,696
$1,205
Save $491
From SEA
Elite
Sep 15
Washington, D.C., United States
86% AI deal score
$1,663
$1,205
Save $458
From SEA
Elite
Sep 23
Washington, D.C., United States
86% AI deal score
$1,694
$1,226
Save $468
From SEA
Elite
Sep 23
Washington, D.C., United States
86% AI deal score
$1,696
$1,226
Save $470
From SEA
Elite
Aug 25
Washington, D.C., United States
86% AI deal score
$1,411
$1,085
Save $326
From SEA
Elite
Oct 10
Washington, D.C., United States
86% AI deal score
$1,621
$1,167
Save $454
From SEA
Elite
Sep 23
Washington, D.C., United States
86% AI deal score
$1,641
$1,205
Save $436
From SEA
Elite
Sep 16
Washington, D.C., United States
86% AI deal score
$1,602
$1,205
Save $397
From SEA
Elite
Sep 22
Washington, D.C., United States
86% AI deal score
$1,616
$1,205
Save $411
From SEA
Elite
Sep 23
Washington, D.C., United States
86% AI deal score
$1,624
$1,205
Save $419
From SEA
Elite
Sep 16
Washington, D.C., United States
86% AI deal score
$1,598
$1,205
Save $393
From SEA
Elite
Sep 22
Washington, D.C., United States
86% AI deal score
$1,608
$1,205
Save $403
From SEA
Elite
Sep 22
Washington, D.C., United States
86% AI deal score
$1,605
$1,205
Save $400
From SEA
Elite
Sep 23
Washington, D.C., United States
86% AI deal score
$1,627
$1,205
Save $422
From SEA
Elite
Sep 09
Washington, D.C., United States
86% AI deal score
$1,595
$1,205
Save $390
From SEA
Elite
Sep 09
Washington, D.C., United States
86% AI deal score
$1,585
$1,205
Save $380
From SEA
Elite
Oct 02
Washington, D.C., United States
85% AI deal score
$1,586
$1,207
Save $379
From SEA
Elite
Sep 09
Washington, D.C., United States
85% AI deal score
$1,611
$1,226
Save $385
From SEA
Elite
Sep 15
Washington, D.C., United States
85% AI deal score
$1,617
$1,226
Save $391
From SEA
Elite
Sep 15
Washington, D.C., United States
85% AI deal score
$1,619
$1,226
Save $393
From SEA
Elite
Sep 15
Washington, D.C., United States
85% AI deal score
$1,640
$1,226
Save $414
From SEA
Elite
Sep 09
Washington, D.C., United States
85% AI deal score
$1,611
$1,226
Save $385
From SEA
Elite
Sep 09
Washington, D.C., United States
85% AI deal score
$1,642
$1,226
Save $416
From SEA
Elite
Sep 23
Washington, D.C., United States
85% AI deal score
$1,617
$1,226
Save $391
From SEA
Elite
Sep 23
Washington, D.C., United States
85% AI deal score
$1,617
$1,226
Save $391
From SEA
Elite
Sep 23
Washington, D.C., United States
85% AI deal score
$1,617
$1,226
Save $391
From SEA
Elite
Sep 23
Washington, D.C., United States
85% AI deal score
$1,654
$1,226
Save $428
From SEA
Elite
Sep 09
Washington, D.C., United States
85% AI deal score
$1,611
$1,226
Save $385
From SEA
Elite
Aug 19
Washington, D.C., United States
85% AI deal score
$1,409
$1,115
Save $294
From SEA
Elite
Sep 25
Washington, D.C., United States
85% AI deal score
$1,551
$1,156
Save $395
From SEA
Elite
Sep 15
Washington, D.C., United States
85% AI deal score
$1,508
$1,165
Save $343
From SEA
Elite
Sep 16
Washington, D.C., United States
85% AI deal score
$1,517
$1,205
Save $312
From SEA
Elite
Sep 22
Washington, D.C., United States
85% AI deal score
$1,562
$1,205
Save $357
From SEA
Elite
Sep 16
Washington, D.C., United States
85% AI deal score
$1,534
$1,205
Save $329
From SEA
Elite
Sep 16
Washington, D.C., United States
85% AI deal score
$1,546
$1,205
Save $341
From SEA
Elite
Sep 23
Washington, D.C., United States
85% AI deal score
$1,551
$1,205
Save $346
From SEA
Elite
Sep 22
Washington, D.C., United States
85% AI deal score
$1,532
$1,205
Save $327
From SEA
Elite
Sep 16
Washington, D.C., United States
85% AI deal score
$1,521
$1,205
Save $316
From SEA
Elite
Sep 16
Washington, D.C., United States
85% AI deal score
$1,560
$1,205
Save $355
From SEA
Elite
Sep 23
Washington, D.C., United States
85% AI deal score
$1,546
$1,205
Save $341
From SEA
Elite
Sep 22
Washington, D.C., United States
85% AI deal score
$1,569
$1,205
Save $364
From SEA
Elite
Sep 16
Washington, D.C., United States
85% AI deal score
$1,534
$1,205
Save $329
From SEA
Elite
Sep 09
Washington, D.C., United States
85% AI deal score
$1,522
$1,205
Save $317
From SEA
Elite
Sep 09
Washington, D.C., United States
85% AI deal score
$1,547
$1,205
Save $342
From SEA
Elite
Sep 15
Washington, D.C., United States
85% AI deal score
$1,534
$1,205
Save $329
From SEA
Elite
Sep 15
Washington, D.C., United States
85% AI deal score
$1,534
$1,205
Save $329
From SEA
Elite
Aug 22
Washington, D.C., United States
84% AI deal score
$1,448
$1,196
Save $252
From SEA
Elite
Sep 15
Washington, D.C., United States
80% AI deal score
$1,583
$1,226
Save $357
From SEA
Elite
Sep 15
Washington, D.C., United States
80% AI deal score
$1,579
$1,226
Save $353
From SEA
Elite
Sep 15
Washington, D.C., United States
80% AI deal score
$1,583
$1,226
Save $357
From SEA
Elite
Sep 16
Washington, D.C., United States
80% AI deal score
$1,512
$1,205
Save $307
From SEA
Elite
Sep 16
Washington, D.C., United States
80% AI deal score
$1,508
$1,205
Save $303
From SEA
Elite
Sep 09
Washington, D.C., United States
80% AI deal score
$1,468
$1,205
Save $263
From SEA
Elite
Sep 09
Washington, D.C., United States
80% AI deal score
$1,469
$1,205
Save $264
From SEA
Elite
Sep 15
Washington, D.C., United States
80% AI deal score
$1,516
$1,205
Save $311
From SEA
Elite
Sep 09
Washington, D.C., United States
80% AI deal score
$1,468
$1,205
Save $263
From SEA
Elite
Sep 15
Washington, D.C., United States
80% AI deal score
$1,506
$1,205
Save $301
From SEA
Elite
Sep 09
Washington, D.C., United States
80% AI deal score
$1,481
$1,205
Save $276
From SEA
Elite
Sep 01
Washington, D.C., United States
79% AI deal score
$1,512
$1,226
Save $286
From SEA
Elite
Sep 09
Washington, D.C., United States
79% AI deal score
$1,466
$1,205
Save $261
From SEA
Elite
Sep 10
Washington, D.C., United States
79% AI deal score
$1,218
$867
Save $351
From SEA
Elite
Sep 02
Washington, D.C., United States
79% AI deal score
$1,202
$867
Save $335
From SEA
Elite
Sep 17
Washington, D.C., United States
79% AI deal score
$1,222
$867
Save $355
From SEA
Elite
Sep 02
Washington, D.C., United States
79% AI deal score
$1,193
$867
Save $326
From SEA
Elite
Sep 17
Washington, D.C., United States
79% AI deal score
$1,175
$867
Save $308
From SEA
Elite
Aug 06
Washington, D.C., United States
79% AI deal score
$1,212
$907
Save $305
From SEA
Elite
Sep 11
Washington, D.C., United States
79% AI deal score
$1,234
$907
Save $327
From SEA
Elite
Aug 20
Washington, D.C., United States
79% AI deal score
$1,276
$937
Save $339
From SEA
Elite
Sep 01
Washington, D.C., United States
78% AI deal score
$1,450
$1,226
Save $224
From SEA
Elite
Sep 01
Washington, D.C., United States
78% AI deal score
$1,483
$1,226
Save $257
From SEA
Elite
Sep 01
Washington, D.C., United States
78% AI deal score
$1,450
$1,226
Save $224
From SEA
Elite
Sep 01
Washington, D.C., United States
78% AI deal score
$1,470
$1,226
Save $244
From SEA
Elite
Sep 01
Washington, D.C., United States
78% AI deal score
$1,454
$1,226
Save $228
From SEA
Elite
Sep 01
Washington, D.C., United States
78% AI deal score
$1,450
$1,226
Save $224
From SEA
Elite
Sep 01
Washington, D.C., United States
78% AI deal score
$1,481
$1,226
Save $255
From SEA
Elite
Aug 06
Washington, D.C., United States
78% AI deal score
$1,577
$1,377
Save $200
From SEA
Elite
Sep 03
Washington, D.C., United States
78% AI deal score
$1,161
$867
Save $294
From SEA
Elite
Aug 10
Washington, D.C., United States
78% AI deal score
$1,215
$952
Save $263
From SEA
Elite
Aug 20
Washington, D.C., United States
78% AI deal score
$1,255
$952
Save $303
From SEA
Elite
Aug 11
Washington, D.C., United States
77% AI deal score
$1,560
$1,375
Save $185
From SEA
Elite
Aug 12
Washington, D.C., United States
77% AI deal score
$1,560
$1,375
Save $185