$86+ Cheap flights from Philadelphia (PHL) to Washington
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/17. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SEA
Apr 29 — May 61
Round-trip
1 adult, Economy
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Cheapest flights from Philadelphia to WashingtonExplore the most affordable flight options available from Philadelphia to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 30, 2026.
Explore the most affordable flight options available from Philadelphia to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 30, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/178:36 pm
PHL
- SEA
1 stop15h 51m
Frontier
Mon 4/204:20 pm
SEA
- PHL
2 stops13h 51m
Frontier
Deal found 3/29![Frontier logo]()
$277
This Kiwi.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/88:35 pm
PHL
- SEA
2 stops49h 00m
Frontier
Thu 5/147:50 pm
SEA
- PHL
1 stop30h 47m
Frontier
Deal found 3/27![Frontier logo]()
$278
This Kiwi.com deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/258:41 pm
PHL
- SEA
1 stop15h 46m
Frontier
Sat 5/27:12 pm
SEA
- PHL
2 stops26h 14m
Frontier
Deal found 3/28![Frontier logo]()
$279
This Frontier deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/166:43 am
PHL
- SEA
1 stop15h 37m
Frontier
Fri 4/247:12 pm
SEA
- PHL
1 stop7h 22m
Frontier
Deal found 3/28![Frontier logo]()
$280
This CheapOair deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/2512:42 pm
PHL
- SEA
1 stop24h 06m
Frontier
Mon 8/37:41 pm
SEA
- PHL
1 stop13h 06m
Frontier
Deal found 3/30![Frontier logo]()
$281
This Kiwi.com deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/38:36 pm
PHL
- SEA
1 stop21h 29m
Frontier
Fri 5/87:50 pm
SEA
- PHL
1 stop30h 47m
Frontier
Deal found 3/28![Frontier logo]()
$283
This Kiwi.com deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/68:35 pm
PHL
- SEA
1 stop16h 14m
Frontier
Sun 5/1011:06 am
SEA
- PHL
2 stops16h 46m
Frontier
Deal found 3/30![Frontier logo]()
$284
This Kiwi.com deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/305:30 am
PHL
- SEA
2 stops31h 22m
Frontier
Sun 5/37:12 pm
SEA
- PHL
1 stop31h 22m
Frontier
Deal found 3/30![Frontier logo]()
$285
This CheapOair deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/108:25 pm
PHL
- SEA
1 stop18h 12m
Frontier
Sun 4/197:12 pm
SEA
- PHL
1 stop7h 22m
Frontier
Deal found 3/26![Frontier logo]()
$286
This Kiwi.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1310:36 pm
PHL
- SEA
2 stops37h 51m
Frontier
Fri 4/177:12 pm
SEA
- PHL
1 stop31h 23m
Frontier
Deal found 3/26![Frontier logo]()
$287
This Kiwi.com deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/288:36 pm
PHL
- SEA
1 stop15h 51m
Frontier
Fri 5/811:37 am
SEA
- PHL
2 stops21h 20m
Frontier
Deal found 3/30![Frontier logo]()
$288
This Kiwi.com deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/167:00 am
PHL
- SEA
2 stops13h 42m
Multiple Airlines
Mon 4/207:12 pm
SEA
- PHL
1 stop31h 22m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$289
Best flights from Philadelphia to WashingtonDiscover carefully curated flight deals from Philadelphia to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 30, 2026.
Discover carefully curated flight deals from Philadelphia to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 30, 2026.
This Delta deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/36:45 pm
PHL
- GEG
1 stop7h 50m
Delta
Wed 6/105:37 pm
GEG
- PHL
2 stops9h 31m
Delta
Deal found 3/26![Delta logo]()
$308
This United Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/136:45 pm
PHL
- PDX
1 stop8h 08m
United Airlines
Fri 6/1910:40 pm
PDX
- PHL
1 stop7h 59m
United Airlines
Deal found 3/30![United Airlines logo]()
$337
This Southwest deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/285:55 am
PHL
- SEA
1 stop11h 00m
Southwest
Mon 8/3111:05 pm
SEA
- PHL
1 stop9h 30m
Southwest
Deal found 3/26![Southwest logo]()
$349
This Orbitz deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/208:37 pm
PHL
- PDX
1 stop23h 20m
Multiple Airlines
Tue 7/287:17 am
PDX
- PHL
Nonstop5h 06m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$379
This Alaska Airlines deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/307:22 am
PHL
- PUW
1 stop10h 24m
Alaska Airlines
Mon 5/47:28 pm
PUW
- PHL
1 stop7h 34m
Alaska Airlines
Deal found 3/27![Alaska Airlines logo]()
$429
This Delta deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:05 am
PHL
- SEA
Nonstop5h 59m
Delta
Sun 9/69:50 pm
SEA
- PHL
Nonstop5h 15m
Delta
Deal found 3/28![Delta logo]()
$329
This Southwest deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/224:35 pm
PHL
- SEA
2 stops11h 05m
Southwest
Mon 8/311:05 pm
SEA
- PHL
1 stop9h 30m
Southwest
Deal found 3/29![Southwest logo]()
$354
This Delta deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/286:45 pm
PHL
- SEA
1 stop8h 27m
Delta
Thu 6/49:20 pm
SEA
- PHL
Nonstop5h 15m
Delta
Deal found 3/25![Delta logo]()
$339
This Southwest deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/67:30 am
PHL
- PDX
1 stop8h 00m
Southwest
Sat 5/99:35 am
PDX
- PHL
2 stops10h 25m
Southwest
Deal found 3/30![Southwest logo]()
$362
This Delta deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/117:10 am
PHL
- SEA
Nonstop5h 50m
Delta
Thu 5/215:45 pm
SEA
- PHL
1 stop9h 25m
Delta
Deal found 3/30![Delta logo]()
$339
This United Airlines deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/285:00 pm
PHL
- PDX
1 stop8h 34m
United Airlines
Wed 4/2911:59 pm
PDX
- PHL
1 stop7h 00m
United Airlines
Deal found 3/26![United Airlines logo]()
$427
This Alaska Airlines deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/97:22 am
PHL
- PSC
1 stop8h 22m
Alaska Airlines
Tue 5/127:30 pm
PSC
- PHL
1 stop7h 10m
Alaska Airlines
Deal found 3/25![Alaska Airlines logo]()
$433
This Delta deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:40 pm
PHL
- SEA
1 stop8h 21m
Delta
Sat 9/129:50 pm
SEA
- PHL
Nonstop5h 15m
Delta
Deal found 3/29![Delta logo]()
$339
This Southwest deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:30 am
PHL
- SEA
2 stops10h 50m
Southwest
Sat 8/295:30 am
SEA
- PHL
2 stops12h 15m
Southwest
Deal found 3/25![Southwest logo]()
$379
This United Airlines deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/510:28 am
PHL
- PDX
2 stops15h 41m
United Airlines
Tue 9/811:15 pm
PDX
- PHL
2 stops11h 50m
United Airlines
Deal found 3/25![United Airlines logo]()
$437
This Alaska Airlines deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/26:58 pm
PHL
- YKM
1 stop8h 01m
Alaska Airlines
Tue 5/51:57 pm
YKM
- PHL
1 stop13h 05m
Alaska Airlines
Deal found 3/25![Alaska Airlines logo]()
$451
This Delta deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/247:08 am
PHL
- SEA
Nonstop5h 56m
Delta
Tue 8/49:30 pm
SEA
- PHL
Nonstop5h 23m
Delta
Deal found 3/30![Delta logo]()
$353
This Southwest deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/152:10 pm
PHL
- PDX
1 stop7h 15m
Southwest
Wed 8/1911:30 pm
PDX
- PHL
1 stop8h 40m
Southwest
Deal found 3/29![Southwest logo]()
$392
This United Airlines deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/176:23 pm
PHL
- PDX
1 stop9h 27m
United Airlines
Sat 7/2510:40 pm
PDX
- PHL
1 stop7h 59m
United Airlines
Deal found 3/29![United Airlines logo]()
$447
This Delta deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:40 pm
PHL
- SEA
1 stop8h 21m
Delta
Mon 8/249:50 pm
SEA
- PHL
Nonstop5h 15m
Delta
Deal found 3/29![Delta logo]()
$363
This Alaska Airlines deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/246:58 pm
PHL
- BLI
1 stop26h 41m
Alaska Airlines
Mon 4/277:19 pm
BLI
- PHL
1 stop7h 43m
Alaska Airlines
Deal found 3/25![Alaska Airlines logo]()
$487
This United Airlines deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/14:54 pm
PHL
- PDX
1 stop9h 59m
United Airlines
Tue 6/911:40 pm
PDX
- PHL
2 stops11h 30m
United Airlines
Deal found 3/29![United Airlines logo]()
$452
This Delta deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/286:40 pm
PHL
- SEA
1 stop8h 21m
Delta
Sat 9/59:50 pm
SEA
- PHL
Nonstop5h 15m
Delta
Deal found 3/25![Delta logo]()
$363
This Alaska Airlines deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/167:25 am
PHL
- BLI
1 stop19h 34m
Alaska Airlines
Mon 4/206:19 pm
BLI
- PHL
1 stop8h 46m
Alaska Airlines
Deal found 3/25![Alaska Airlines logo]()
$491
This Southwest deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/42:05 pm
PHL
- PDX
1 stop9h 40m
Southwest
Tue 9/87:05 am
PDX
- PHL
2 stops10h 30m
Southwest
Deal found 3/29![Southwest logo]()
$452
This United Airlines deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/26:20 pm
PHL
- PSC
1 stop9h 30m
United Airlines
Wed 7/81:35 pm
PSC
- PHL
1 stop8h 54m
United Airlines
Deal found 3/29![United Airlines logo]()
$462
This Delta deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/66:55 pm
PHL
- SEA
1 stop8h 04m
Delta
Tue 8/119:50 pm
SEA
- PHL
Nonstop5h 15m
Delta
Deal found 3/26![Delta logo]()
$363
This Southwest deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/204:45 pm
PHL
- PDX
2 stops10h 45m
Southwest
Tue 7/2811:30 pm
PDX
- PHL
1 stop8h 20m
Southwest
Deal found 3/30![Southwest logo]()
$457
This Alaska Airlines deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/156:47 pm
PHL
- PUW
1 stop8h 07m
Alaska Airlines
Thu 4/237:28 pm
PUW
- PHL
1 stop7h 34m
Alaska Airlines
Deal found 3/29![Alaska Airlines logo]()
$509
This Delta deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/106:57 pm
PHL
- SEA
1 stop8h 02m
Delta
Mon 6/229:31 pm
SEA
- PHL
Nonstop5h 14m
Delta
Deal found 3/26![Delta logo]()
$363
Last-minute flights from Philadelphia to WashingtonDiscover last-minute flight deals from Philadelphia to Washington. Data last updated March 30, 2026 and is based on user searches.
Discover last-minute flight deals from Philadelphia to Washington. Data last updated March 30, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/95:01 am
PHL
- PDX
2 stops33h 02m
Frontier
Wed 4/1512:28 pm
PDX
- PHL
1 stop14h 06m
Frontier
Deal found 3/26![Frontier logo]()
$298
This CheapOair deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/98:25 pm
PHL
- SEA
1 stop18h 12m
Frontier
Mon 4/139:34 pm
SEA
- PHL
1 stop30h 16m
Frontier
Deal found 3/25![Frontier logo]()
$306
This Kiwi.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/138:25 pm
PHL
- PDX
1 stop19h 37m
Frontier
Sat 4/1812:27 pm
PDX
- PHL
2 stops13h 46m
Frontier
Deal found 3/27![Frontier logo]()
$307
This Kiwi.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/138:25 pm
PHL
- PDX
1 stop19h 37m
Frontier
Thu 4/2311:48 am
PDX
- PHL
2 stops23h 40m
Frontier
Deal found 3/27![Frontier logo]()
$308
This Kiwi.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/138:25 pm
PHL
- PDX
1 stop19h 37m
Frontier
Fri 4/1711:48 am
PDX
- PHL
1 stop14h 46m
Frontier
Deal found 3/26![Frontier logo]()
$309
This Kiwi.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/158:41 pm
PHL
- PDX
1 stop17h 22m
Frontier
Sat 4/1812:27 pm
PDX
- PHL
2 stops13h 46m
Frontier
Deal found 3/26![Frontier logo]()
$305
This Kiwi.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/158:41 pm
PHL
- PDX
1 stop17h 22m
Frontier
Fri 4/1711:48 am
PDX
- PHL
1 stop14h 46m
Frontier
Deal found 3/26![Frontier logo]()
$306
This Kiwi.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/151:30 pm
PHL
- PDX
2 stops24h 33m
Frontier
Mon 4/2011:48 am
PDX
- PHL
1 stop14h 46m
Frontier
Deal found 3/27![Frontier logo]()
$311
This Kiwi.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/168:41 pm
PHL
- PDX
1 stop17h 22m
Frontier
Thu 4/2311:48 am
PDX
- PHL
2 stops32h 54m
Frontier
Deal found 3/26![Frontier logo]()
$295
This Kiwi.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/168:41 pm
PHL
- PDX
1 stop17h 22m
Frontier
Mon 4/2011:48 am
PDX
- PHL
1 stop14h 46m
Frontier
Deal found 3/26![Frontier logo]()
$299
This Kiwi.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/163:29 pm
PHL
- PDX
2 stops20h 30m
Frontier
Tue 4/2112:38 pm
PDX
- PHL
1 stop13h 56m
Frontier
Deal found 3/27![Frontier logo]()
$300
This Kiwi.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/178:36 pm
PHL
- PDX
1 stop18h 06m
Multiple Airlines
Sun 4/197:46 pm
PDX
- PHL
2 stops24h 53m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$303
One-way flights from Philadelphia to WashingtonSearch for one-way flight options from Philadelphia to Washington. Find affordable one-way fares based on user searches. Data last updated March 30, 2026.
Search for one-way flight options from Philadelphia to Washington. Find affordable one-way fares based on user searches. Data last updated March 30, 2026.
This Booking.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/178:36 pm
PHL
- PDX
1 stop18h 06m
Frontier
Deal found 3/27![Frontier logo]()
$86
This Booking.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/258:41 pm
PHL
- PDX
1 stop16h 39m
Frontier
Deal found 3/26![Frontier logo]()
$87
This Kiwi.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/208:41 pm
PHL
- PDX
1 stop18h 11m
Frontier
Deal found 3/27![Frontier logo]()
$89
This CheapOair deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/288:36 pm
PHL
- PDX
1 stop18h 16m
Frontier
Deal found 3/28![Frontier logo]()
$92
This Booking.com deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/158:41 pm
PHL
- PDX
1 stop17h 22m
Frontier
Deal found 3/29![Frontier logo]()
$106
This Kiwi.com deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/188:41 pm
PHL
- PDX
1 stop16h 39m
Frontier
Deal found 3/29![Frontier logo]()
$110
This Booking.com deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/18:41 pm
PHL
- PDX
1 stop18h 01m
Frontier
Deal found 3/29![Frontier logo]()
$111
This Kiwi.com deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/278:41 pm
PHL
- PDX
1 stop18h 11m
Frontier
Deal found 3/28![Frontier logo]()
$113
This Expedia deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/307:50 pm
PHL
- PDX
1 stop19h 00m
Frontier
Deal found 3/30![Frontier logo]()
$116
This CheapOair deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/218:36 pm
PHL
- PDX
1 stop18h 16m
Frontier
Deal found 3/30![Frontier logo]()
$117
This Kiwi.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/28:35 pm
PHL
- SEA
2 stops41h 01m
Frontier
Deal found 3/26![Frontier logo]()
$141
This Kiwi.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/138:35 pm
PHL
- SEA
1 stop16h 14m
Frontier
Deal found 3/27![Frontier logo]()
$142
Find flight deals from Philadelphia to Washington
Keep the following information in mind while searching for Philadelphia to Washington flight deals. Data was last updated March 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $277 (Kiwi.com) |
One-way from | $86 (Booking.com) |
Popular in | June |
Cheapest in | January |
Average price | $357 |
Good round-trip deal | $357 or less |
Good one-way deal | $206 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Philadelphia to Washington that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 30, 2026.
Use the filters below to find and compare flights from Philadelphia to Washington that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PhiladelphiaSpokane
PHL - GEG
PHLGEG
Philadelphia
Wed 6/3
6:45 pm-11:35 pm
1 stop7h 50m
Spokane
Wed 6/10
5:37 pm-6:08 am
2 stops9h 31m
$308
Quickest round-trip
PhiladelphiaSeattle
PHL - SEA
PHLSEA
Philadelphia
Thu 8/27
7:05 am-10:04 am
Nonstop5h 59m
Seattle/Tacoma Intl
Sun 9/6
9:50 pm-6:05 am
Nonstop5h 15m
$329
PhiladelphiaPortland
PHL - PDX
PHLPDX
Philadelphia
Sat 6/13
6:45 pm-11:53 pm
1 stop8h 08m
Portland
Fri 6/19
10:40 pm-9:39 am
1 stop7h 59m
$337
PhiladelphiaSeattle
PHL - SEA
PHLSEA
Philadelphia
Thu 5/28
6:45 pm-12:12 am
1 stop8h 27m
Seattle/Tacoma Intl
Thu 6/4
9:20 pm-5:35 am
Nonstop5h 15m
$339
PhiladelphiaSeattle
PHL - SEA
PHLSEA
Philadelphia
Mon 5/11
7:10 am-10:00 am
Nonstop5h 50m
Seattle/Tacoma Intl
Thu 5/21
5:45 pm-6:10 am
1 stop9h 25m
$339
PhiladelphiaSeattle
PHL - SEA
PHLSEA
Philadelphia
Mon 8/31
6:40 pm-12:01 am
1 stop8h 21m
Seattle/Tacoma Intl
Sat 9/12
9:50 pm-6:05 am
Nonstop5h 15m
$339
PhiladelphiaSeattle
PHL - SEA
PHLSEA
Philadelphia
Fri 8/28
5:55 am-1:55 pm
1 stop11h 00m
Seattle/Tacoma Intl
Mon 8/31
11:05 pm-11:35 am
1 stop9h 30m
$349
PhiladelphiaSeattle
PHL - SEA
PHLSEA
Philadelphia
Fri 7/24
7:08 am-10:04 am
Nonstop5h 56m
Seattle/Tacoma Intl
Tue 8/4
9:30 pm-5:53 am
Nonstop5h 23m
$353
PhiladelphiaSeattle
PHL - SEA
PHLSEA
Philadelphia
Wed 7/22
4:35 pm-12:40 am
2 stops11h 05m
Seattle/Tacoma Intl
Mon 8/3
11:05 pm-11:35 am
1 stop9h 30m
$354
PhiladelphiaPortland
PHL - PDX
PHLPDX
Philadelphia
Wed 5/6
7:30 am-12:30 pm
1 stop8h 00m
Portland
Sat 5/9
9:35 am-11:00 pm
2 stops10h 25m
$362
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Philadelphia to Washington
Have a flexible travel schedule? Discover the best time to fly to Washington from Philadelphia with our price prediction graph.
PHL-PDX
PHL-SEA
PHL-GEG
PHL-PUW
PHL-PSC
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Philadelphia to Washington
PHL-USWA
PHL-PDX
PHL-SEA
PHL-GEG
PHL-PUW
What is the cheapest month to book a flight from Philadelphia to State of Washington?
Currently, October is the cheapest month in which you can book a flight from Philadelphia to State of Washington (average of $148). Flying from Philadelphia to State of Washington in April is currently the most expensive (average of $219). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from PHL to WA?
Find hourly flight availability from Philadelphia to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 30, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Philadelphia to State of Washington as you normally would.
Weekly flight availability from Philadelphia to State of Washington
Explore weekly flight availability from Philadelphia to Washington. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated March 30, 2026.
The most flights from PHL to USWA are scheduled on a Monday (7 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (4 on average).
How much does it cost to fly round-trip from Philadelphia to State of Washington?
Reviews of airlines servicing Washington
Get insights into the airlines that provide service to Washington. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington. Reviews last updated March 30, 2026.
Read through reviews of airlines operating flights from Philadelphia to Washington, such as Alaska Airlines,Delta, andHawaiian Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Entertainment
7.0
Overall
7.9
Boarding
8.1
Crew
8.5
Food
7.0
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Comfort
7.8
Entertainment
7.0
Overall
7.9
Boarding
8.1
Crew
8.5
Food
7.0
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Comfort
7.8
Entertainment
7.0
Overall
7.9
Boarding
8.1
Crew
8.5
Food
7.0
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Comfort
7.8
Entertainment
7.0
Overall
7.9
Boarding
8.1
Crew
8.5
Food
7.0
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Comfort
7.8
Entertainment
7.0
Overall
7.9
Boarding
8.1
Crew
8.5
Food
7.0
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Comfort
7.8
Entertainment
7.0
Overall
7.9
Boarding
8.1
Crew
8.5
Food
7.0
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Related info for your journey
Find useful and relevant information for your journey from Philadelphia to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Philadelphia to Washington
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Complete your trip
Complete your trip to Washington by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Philadelphia to Washington by cabin class
Find flights from Philadelphia to Washington, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Philadelphia and Washington flights
Browse other Philadelphia and Washington flight options. Last updated on March 30, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Philadelphia to Washington flights
Consider these flights traveling from Philadelphia to Washington.
Top 8 airlines flying from Philadelphia to Washington
Discover the top 8 airlines that operate flights from Philadelphia to Washington. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$115 | Average$237 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$130 | Average$295 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$199 | Average$473 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$203 | Average$454 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$224 | Average$434 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$251 | Average$519 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$258 | Average$469 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$276 | Average$406 | FlexibilityNo cancel fee | On-time71% |