Cheap flights to Washington – Compare and Save
— SEA
6 Nov — 13 Nov1
Return
1 adult
Economy
Return
1 adult, Economy
Flights to Washington in 2025
Find the latest flights to Washington in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 7 October 2025.
Return from | £440 |
---|---|
One-way from | £306 |
Popular in | July |
Cheapest in | January |
Average price | £532 |
Good round-trip deal | £495 or less |
Good one-way deal | £564 or less |
- Icelandair
- 14/12-6/1
- 2 total stops
- 25h 25m total
- London to Seattle
- 14/12
- 2 total stops
- 37h 40m total
- London to Washington
Highest demand for flights based on searches. 12% potential increase in price (£59 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Average for return flights in October 2025
Price to beat on a round-trip flight from London to Washington.
Price to beat on a one-way flight from London to Washington.
Find flights to Washington
Browse one-way and return flights deals to Washington on Cheapflights. Flight deals are based on user searches and were last updated on 7 October 2025
Explore Washington
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Cheapest flights to WashingtonExplore the most affordable flight options available to Washington. Find the lowest fares based on data from user searches, with prices last updated on 7 October 2025.
Explore the most affordable flight options available to Washington. Find the lowest fares based on data from user searches, with prices last updated on 7 October 2025.
Sun 14/1211:55LGW - SEA
1 stop13h 05mIcelandair
Tue 6/114:35SEA - LGW
1 stop12h 20mIcelandair
Deal found 7/10£440
Sun 14/1211:55LGW - SEA
1 stop13h 05mIcelandair
Tue 6/114:35SEA - LGW
1 stop12h 20mIcelandair
Deal found 6/10£441
Sun 14/1212:15LHR - SEA
1 stop12h 45mIcelandair
Tue 6/114:35SEA - LHR
1 stop12h 15mIcelandair
Deal found 7/10£443
Fri 21/1106:30STN - SEA
2 stops18h 30mMultiple Airlines
Fri 28/1114:35SEA - STN
2 stops22h 45mMultiple Airlines
Deal found 7/10£444
Fri 12/1212:15LHR - SEA
1 stop12h 45mIcelandair
Mon 9/315:35SEA - LHR
1 stop12h 15mIcelandair
Deal found 6/10£444
Thu 20/1109:00LTN - SEA
2 stops16h 00mMultiple Airlines
Thu 27/1114:35SEA - LTN
2 stops17h 25mMultiple Airlines
Deal found 6/10£444
Wed 5/1112:15LHR - SEA
1 stop12h 45mIcelandair
Fri 3/415:45SEA - LHR
1 stop12h 10mIcelandair
Deal found 6/10£444
Sun 14/1212:15LHR - SEA
1 stop12h 45mIcelandair
Tue 30/1214:35SEA - LHR
1 stop12h 15mIcelandair
Deal found 6/10£447
Thu 20/1108:50LGW - SEA
2 stops16h 10mMultiple Airlines
Thu 27/1114:35SEA - LGW
2 stops19h 55mMultiple Airlines
Deal found 6/10£447
Wed 17/1212:15LHR - SEA
1 stop12h 45mIcelandair
Tue 30/1214:35SEA - LHR
1 stop12h 15mIcelandair
Deal found 6/10£447
Thu 20/1108:50LGW - SEA
2 stops16h 10mMultiple Airlines
Thu 27/1114:35SEA - LGW
2 stops19h 55mMultiple Airlines
Deal found 6/10£449
Wed 5/1112:15LHR - SEA
1 stop12h 45mIcelandair
Fri 3/415:45SEA - LHR
1 stop12h 10mIcelandair
Deal found 5/10£449
Best flights to WashingtonDiscover carefully curated flight deals to Washington that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 7 October 2025.
Discover carefully curated flight deals to Washington that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 7 October 2025.
Mon 15/1211:55LGW - SEA
1 stop13h 05mIcelandair
Tue 6/114:35SEA - LGW
1 stop12h 20mIcelandair
Deal found 7/10£440
Fri 21/1106:30STN - SEA
2 stops18h 30mMultiple Airlines
Fri 28/1114:35SEA - STN
2 stops22h 45mMultiple Airlines
Deal found 7/10£444
Sun 14/1208:40LHR - SEA
1 stop35h 10mDelta
Tue 10/317:40SEA - LHR
Nonstop9h 50mDelta
Deal found 6/10£497
Tue 24/209:15LCY - SEA
2 stops22h 15mSWISS
Tue 3/312:37SEA - LCY
2 stops20h 28mSWISS
Deal found 4/10£540
Wed 19/1117:05LCY - SEA
1 stop26h 40mVirgin Atlantic
Wed 26/1107:20SEA - LCY
2 stops15h 55mVirgin Atlantic
Deal found 5/10£548
Wed 26/1111:30LHR - PDX
2 stops20h 56mUnited Airlines
Wed 3/1206:00PDX - LHR
1 stop17h 25mUnited Airlines
Deal found 6/10£593
Mon 10/1113:45LHR - PDX
Nonstop10h 10mBritish Airways
Mon 24/1113:26PDX - LHR
1 stop12h 59mBritish Airways
Deal found 7/10£598
Mon 10/1114:30LHR - PDX
1 stop26h 45mAir Canada
Mon 24/1115:15PDX - LHR
2 stops31h 55mAir Canada
Deal found 7/10£609
Wed 19/1118:10LCY - PDX
2 stops32h 20mLufthansa
Wed 26/1109:50PDX - LCY
2 stops22h 50mLufthansa
Deal found 5/10£647
Sun 14/1212:15LHR - SEA
1 stop12h 45mIcelandair
Tue 6/114:35SEA - LHR
1 stop12h 15mIcelandair
Deal found 7/10£443
Thu 20/1109:00LTN - SEA
2 stops16h 00mMultiple Airlines
Thu 27/1114:35SEA - LTN
2 stops17h 25mMultiple Airlines
Deal found 6/10£444
Wed 29/1011:55LGW - SEA
1 stop13h 05mIcelandair
Fri 7/1114:35SEA - LGW
1 stop12h 20mIcelandair
Deal found 6/10£452
Wed 10/1211:45LHR - SEA
1 stop32h 05mDelta
Wed 11/317:40SEA - LHR
Nonstop9h 50mDelta
Deal found 6/10£497
Mon 24/1108:30STN - SEA
1 stop17h 50mMultiple Airlines
Sun 30/1120:05SEA - STN
1 stop12h 30mMultiple Airlines
Deal found 4/10£481
Tue 24/209:15LCY - SEA
2 stops21h 14mSWISS
Tue 3/311:05SEA - LCY
2 stops41h 45mSWISS
Deal found 6/10£540
Wed 29/1011:55LGW - SEA
1 stop13h 05mIcelandair
Tue 4/1114:35SEA - LGW
1 stop12h 20mIcelandair
Deal found 6/10£452
Wed 10/1211:45LHR - SEA
1 stop32h 05mDelta
Thu 12/312:00SEA - LHR
1 stop12h 05mDelta
Deal found 6/10£497
Thu 13/1109:20LCY - SEA
1 stop34h 25mVirgin Atlantic
Mon 17/1107:20SEA - LCY
2 stops27h 05mVirgin Atlantic
Deal found 4/10£548
Wed 19/1108:30STN - SEA
1 stop17h 50mMultiple Airlines
Wed 26/1120:05SEA - STN
1 stop13h 45mMultiple Airlines
Deal found 5/10£483
Tue 4/1111:30LHR - PDX
2 stops20h 56mUnited Airlines
Tue 11/1113:00PDX - LHR
2 stops16h 30mUnited Airlines
Deal found 5/10£594
Mon 3/1109:15LCY - SEA
2 stops22h 29mSWISS
Mon 17/1115:37SEA - LCY
2 stops17h 28mSWISS
Deal found 6/10£540
Sun 14/1208:40LHR - SEA
1 stop35h 10mDelta
Mon 9/311:25SEA - LHR
1 stop15h 35mDelta
Deal found 6/10£497
Tue 4/1115:00LHR - PDX
1 stop16h 26mBritish Airways
Sun 23/1100:59PDX - LHR
1 stop23h 36mBritish Airways
Deal found 5/10£615
Mon 15/1211:55LGW - SEA
1 stop13h 05mIcelandair
Mon 5/114:35SEA - LGW
1 stop12h 20mIcelandair
Deal found 7/10£468
Wed 19/1108:30STN - SEA
1 stop17h 50mMultiple Airlines
Wed 26/1120:05SEA - STN
1 stop17h 00mMultiple Airlines
Deal found 5/10£484
Thu 6/1109:40LCY - PDX
2 stops22h 46mLufthansa
Thu 27/1109:50PDX - LCY
2 stops22h 50mLufthansa
Deal found 5/10£652
Tue 4/1109:15LCY - SEA
2 stops22h 29mSWISS
Mon 10/1114:40SEA - LCY
2 stops18h 25mSWISS
Deal found 5/10£540
Mon 15/1206:30LHR - SEA
1 stop13h 20mDelta
Thu 12/312:00SEA - LHR
1 stop12h 05mDelta
Deal found 6/10£497
Mon 15/1211:55LGW - SEA
1 stop13h 05mIcelandair
Wed 31/1214:35SEA - LGW
1 stop12h 20mIcelandair
Deal found 7/10£468
Mon 24/1113:50LTN - SEA
1 stop12h 30mMultiple Airlines
Sun 30/1120:05SEA - LTN
1 stop17h 55mMultiple Airlines
Deal found 4/10£484
Direct flights to WashingtonExplore direct flight options to Washington based on user searches, and compare prices and availability for your desired travel dates. Data last updated 7 October 2025.
Explore direct flight options to Washington based on user searches, and compare prices and availability for your desired travel dates. Data last updated 7 October 2025.
Thu 4/1214:45LHR - SEA
Nonstop10h 05mVirgin Atlantic
Mon 8/1219:20SEA - LHR
Nonstop9h 30mVirgin Atlantic
Deal found 5/10£488
Tue 10/314:45LHR - SEA
Nonstop10h 05mVirgin Atlantic
Tue 17/320:20SEA - LHR
Nonstop9h 30mVirgin Atlantic
Deal found 5/10£497
Thu 13/1114:45LHR - SEA
Nonstop10h 05mVirgin Atlantic
Thu 27/1119:20SEA - LHR
Nonstop9h 30mVirgin Atlantic
Deal found 5/10£505
Sat 6/1212:20LHR - SEA
Nonstop10h 38mVirgin Atlantic
Mon 8/1216:48SEA - LHR
Nonstop9h 42mVirgin Atlantic
Deal found 5/10£508
Wed 19/1112:20LHR - SEA
Nonstop10h 28mVirgin Atlantic
Wed 26/1116:48SEA - LHR
Nonstop9h 42mVirgin Atlantic
Deal found 5/10£508
Wed 10/1212:20LHR - SEA
Nonstop10h 38mDelta
Tue 10/317:40SEA - LHR
Nonstop9h 50mDelta
Deal found 6/10£510
Thu 20/1114:45LHR - SEA
Nonstop10h 05mVirgin Atlantic
Thu 27/1119:20SEA - LHR
Nonstop9h 30mVirgin Atlantic
Deal found 6/10£511
Mon 15/1212:20LHR - SEA
Nonstop10h 38mDelta
Thu 25/1216:48SEA - LHR
Nonstop9h 42mDelta
Deal found 5/10£512
Wed 5/1112:20LHR - SEA
Nonstop10h 28mVirgin Atlantic
Wed 12/1116:48SEA - LHR
Nonstop9h 42mVirgin Atlantic
Deal found 6/10£515
Sun 9/1112:20LHR - SEA
Nonstop10h 28mVirgin Atlantic
Sun 23/1116:48SEA - LHR
Nonstop9h 42mVirgin Atlantic
Deal found 5/10£516
Thu 4/1212:20LHR - SEA
Nonstop10h 38mVirgin Atlantic
Wed 10/1216:48SEA - LHR
Nonstop9h 42mVirgin Atlantic
Deal found 5/10£517
Mon 3/1114:45LHR - SEA
Nonstop10h 05mVirgin Atlantic
Mon 17/1119:20SEA - LHR
Nonstop9h 30mVirgin Atlantic
Deal found 6/10£518
Last-minute flights to WashingtonDiscover last-minute flight deals to Washington. Data last updated 7 October 2025 and is based on user searches.
Discover last-minute flight deals to Washington. Data last updated 7 October 2025 and is based on user searches.
Wed 29/1011:55LGW - SEA
1 stop13h 05mIcelandair
Fri 7/1114:35SEA - LGW
1 stop12h 20mIcelandair
Deal found 6/10£452
Sun 2/1111:55LGW - SEA
1 stop13h 05mIcelandair
Mon 17/1114:35SEA - LGW
1 stop12h 20mIcelandair
Deal found 5/10£458
Sun 2/1111:55LGW - SEA
1 stop13h 05mIcelandair
Mon 17/1114:35SEA - LGW
1 stop12h 20mIcelandair
Deal found 5/10£460
Sun 2/1111:55LGW - SEA
1 stop13h 05mIcelandair
Sun 9/1114:35SEA - LGW
1 stop12h 20mIcelandair
Deal found 5/10£464
Mon 3/1112:10LHR - PSC
2 stops19h 49mMultiple Airlines
Fri 7/1115:49PSC - LHR
2 stops15h 46mMultiple Airlines
Deal found 6/10£966
Mon 3/1108:50LHR - PSC
2 stops23h 09mMultiple Airlines
Fri 7/1113:36PSC - LHR
2 stops17h 59mMultiple Airlines
Deal found 5/10£967
Mon 3/1114:45LHR - PSC
1 stop16h 10mVirgin Atlantic
Fri 7/1111:40PSC - LHR
1 stop14h 20mVirgin Atlantic
Deal found 5/10£1,273
Mon 3/1112:20LHR - PSC
1 stop18h 35mVirgin Atlantic
Fri 7/1111:40PSC - LHR
1 stop14h 20mVirgin Atlantic
Deal found 6/10£1,283
Mon 3/1106:30LHR - PSC
2 stops18h 02mDelta
Fri 7/1106:00PSC - LHR
1 stop17h 05mDelta
Deal found 5/10£1,320
Mon 3/1106:30LHR - PSC
2 stops18h 02mDelta
Fri 7/1111:40PSC - LHR
1 stop14h 20mDelta
Deal found 6/10£1,330
Tue 4/1109:00LHR - GEG
2 stops22h 29mUnited Airlines
Tue 11/1106:00GEG - LHR
1 stop17h 25mUnited Airlines
Deal found 5/10£551
Tue 4/1113:45LHR - GEG
1 stop17h 44mUnited Airlines
Tue 11/1112:45GEG - LHR
1 stop15h 15mUnited Airlines
Deal found 5/10£577
One-way flights to WashingtonSearch for one-way flight options to Washington. Find affordable one-way fares based on user searches. Data last updated 7 October 2025.
Search for one-way flight options to Washington. Find affordable one-way fares based on user searches. Data last updated 7 October 2025.
Fri 5/1214:55LHR - SEA
Nonstop10h 00mBritish Airways
Deal found 5/10£401
Wed 22/1020:50LGW - GEG
3 stops31h 28mMultiple Airlines
Deal found 6/10£342