$111+ 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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SEA
Jul 5 — Jul 121
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 June 5, 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 June 5, 2026.
This Delta deal was found by Cheapflights users on 6/1. 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 8/207:00 pm
PHL
- GEG
1 stop7h 53m
Delta
Mon 8/3112:31 pm
GEG
- PHL
1 stop9h 48m
Delta
Deal found 6/1![Delta logo]()
$221
This Delta deal was found by Cheapflights users on 5/31. 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 9/187:05 am
PHL
- GEG
1 stop8h 15m
Delta
Thu 9/245:40 pm
GEG
- PHL
1 stop9h 10m
Delta
Deal found 5/31![Delta logo]()
$238
This Delta deal was found by Cheapflights users on 5/31. 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 9/117:05 am
PHL
- GEG
1 stop10h 41m
Delta
Sun 9/205:40 pm
GEG
- PHL
1 stop9h 10m
Delta
Deal found 5/31![Delta logo]()
$267
This American Airlines deal was found by Cheapflights users on 6/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/225:43 am
PHL
- GEG
1 stop10h 54m
American Airlines
Sat 8/295:40 am
GEG
- PHL
1 stop10h 08m
American Airlines
Deal found 6/1![American Airlines logo]()
$276
This Delta deal was found by Cheapflights users on 6/2. 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 7/206:57 pm
PHL
- GEG
1 stop7h 09m
Delta
Tue 7/285:37 pm
GEG
- PHL
1 stop8h 52m
Delta
Deal found 6/2![Delta logo]()
$279
This United Airlines deal was found by Cheapflights users on 6/3. 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 10/241:24 pm
PHL
- GEG
2 stops10h 29m
United Airlines
Sat 10/315:00 am
GEG
- PHL
1 stop7h 36m
United Airlines
Deal found 6/3![United Airlines logo]()
$284
This Delta deal was found by Cheapflights users on 6/4. 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 8/247:09 pm
PHL
- GEG
1 stop7h 00m
Delta
Fri 8/286:45 am
GEG
- PHL
1 stop8h 29m
Delta
Deal found 6/4![Delta logo]()
$289
This United Airlines deal was found by Cheapflights users on 6/4. 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 8/243:48 pm
PHL
- GEG
1 stop7h 58m
United Airlines
Fri 8/281:37 pm
GEG
- PHL
1 stop7h 08m
United Airlines
Deal found 6/4![United Airlines logo]()
$299
This American Airlines deal was found by Cheapflights users on 6/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/135:30 pm
PHL
- GEG
1 stop8h 36m
American Airlines
Sat 7/186:30 am
GEG
- PHL
1 stop11h 11m
American Airlines
Deal found 6/1![American Airlines logo]()
$305
This American Airlines deal was found by Cheapflights users on 5/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/147:05 am
PHL
- GEG
1 stop9h 54m
American Airlines
Tue 7/212:29 pm
GEG
- PHL
1 stop7h 30m
American Airlines
Deal found 5/31![American Airlines logo]()
$310
This Delta deal was found by Cheapflights users on 6/1. 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 8/287:00 am
PHL
- SEA
Nonstop5h 56m
Delta
Sat 9/129:50 pm
SEA
- PHL
Nonstop5h 15m
Delta
Deal found 6/1![Delta logo]()
$329
This Orbitz deal was found by Cheapflights users on 6/4. 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.
Wed 9/303:25 pm
PHL
- SEA
1 stop10h 13m
Multiple Airlines
Sat 10/39:25 pm
SEA
- PHL
Nonstop5h 15m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$331
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 June 5, 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 June 5, 2026.
This Delta deal was found by Cheapflights users on 5/31. 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.
Sat 8/227:00 am
PHL
- GEG
1 stop8h 16m
Delta
Sat 8/295:39 pm
GEG
- PHL
1 stop9h 01m
Delta
Deal found 5/31![Delta logo]()
$221
This Alaska Airlines deal was found by Cheapflights users on 6/3. 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 8/224:48 pm
PHL
- SEA
1 stop8h 51m
Alaska Airlines
Sun 8/306:51 pm
SEA
- PHL
1 stop17h 54m
Alaska Airlines
Deal found 6/3![Alaska Airlines logo]()
$349
This Southwest deal was found by Cheapflights users on 5/31. 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.
Tue 8/46:25 pm
PHL
- SEA
1 stop8h 10m
Southwest
Wed 8/511:05 pm
SEA
- PHL
2 stops11h 10m
Southwest
Deal found 5/31![Southwest logo]()
$389
This Delta deal was found by Cheapflights users on 6/1. 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 8/207:00 pm
PHL
- GEG
1 stop7h 53m
Delta
Mon 8/3112:31 pm
GEG
- PHL
1 stop9h 48m
Delta
Deal found 6/1![Delta logo]()
$221
This Delta deal was found by Cheapflights users on 6/2. 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 7/136:55 pm
PHL
- GEG
1 stop8h 00m
Delta
Wed 7/225:37 pm
GEG
- PHL
1 stop8h 52m
Delta
Deal found 6/2![Delta logo]()
$279
This Delta deal was found by Cheapflights users on 5/31. 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.
Tue 7/217:05 am
PHL
- GEG
1 stop8h 06m
Delta
Tue 7/284:30 pm
GEG
- PHL
1 stop9h 59m
Delta
Deal found 5/31![Delta logo]()
$279
This Southwest deal was found by Cheapflights users on 5/31. 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.
Tue 7/284:35 pm
PHL
- PDX
1 stop10h 00m
Southwest
Tue 8/411:30 pm
PDX
- PHL
1 stop9h 05m
Southwest
Deal found 5/31![Southwest logo]()
$391
This Alaska Airlines deal was found by Cheapflights users on 6/3. 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.
Tue 6/305:46 pm
PHL
- GEG
1 stop8h 13m
Alaska Airlines
Fri 7/35:00 am
GEG
- PHL
1 stop7h 23m
Alaska Airlines
Deal found 6/3![Alaska Airlines logo]()
$392
This American Airlines deal was found by Cheapflights users on 6/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/246:17 pm
PHL
- YKM
1 stop8h 42m
American Airlines
Thu 7/21:52 pm
YKM
- PHL
1 stop13h 56m
American Airlines
Deal found 6/2![American Airlines logo]()
$805
This Southwest deal was found by Cheapflights users on 5/30. 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.
Fri 9/185:25 am
PHL
- GEG
2 stops10h 50m
Southwest
Thu 9/241:50 pm
GEG
- PHL
1 stop6h 55m
Southwest
Deal found 5/30![Southwest logo]()
$394
This Alaska Airlines deal was found by Cheapflights users on 6/2. 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.
Sun 11/15:49 pm
PHL
- PDX
1 stop8h 11m
Alaska Airlines
Sun 11/87:15 am
PDX
- PHL
Nonstop5h 10m
Alaska Airlines
Deal found 6/2![Alaska Airlines logo]()
$407
This Delta deal was found by Cheapflights users on 5/30. 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.
Sun 8/306:05 am
PHL
- SEA
1 stop7h 26m
Delta
Wed 9/99:50 pm
SEA
- PHL
Nonstop5h 15m
Delta
Deal found 5/30![Delta logo]()
$339
This Southwest deal was found by Cheapflights users on 5/30. 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.
Fri 8/284:05 pm
PHL
- PDX
2 stops10h 20m
Southwest
Tue 9/16:45 am
PDX
- PHL
1 stop6h 45m
Southwest
Deal found 5/30![Southwest logo]()
$402
This Delta deal was found by Cheapflights users on 6/2. 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.
Tue 7/216:57 pm
PHL
- SEA
1 stop8h 01m
Delta
Tue 7/289:20 pm
SEA
- PHL
Nonstop5h 09m
Delta
Deal found 6/2![Delta logo]()
$339
This Alaska Airlines deal was found by Cheapflights users on 6/1. 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 8/294:48 pm
PHL
- PDX
Nonstop5h 46m
Alaska Airlines
Thu 10/89:29 pm
PDX
- PHL
1 stop29h 11m
Alaska Airlines
Deal found 6/1![Alaska Airlines logo]()
$436
This Southwest deal was found by Cheapflights users on 6/4. 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 7/299:35 am
PHL
- PDX
2 stops10h 35m
Southwest
Mon 8/101:35 pm
PDX
- PHL
1 stop7h 10m
Southwest
Deal found 6/4![Southwest logo]()
$413
This Delta deal was found by Cheapflights users on 6/1. 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.
Tue 8/183:58 pm
PHL
- SEA
1 stop10h 59m
Delta
Mon 8/317:16 am
SEA
- PHL
1 stop8h 33m
Delta
Deal found 6/1![Delta logo]()
$349
This Alaska Airlines deal was found by Cheapflights users on 6/1. 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 9/266:08 pm
PHL
- PUW
1 stop8h 44m
Alaska Airlines
Wed 9/305:36 pm
PUW
- PHL
1 stop9h 04m
Alaska Airlines
Deal found 6/1![Alaska Airlines logo]()
$437
This Southwest deal was found by Cheapflights users on 6/3. 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 8/76:05 pm
PHL
- GEG
1 stop7h 35m
Southwest
Wed 8/126:15 am
GEG
- PHL
2 stops11h 20m
Southwest
Deal found 6/3![Southwest logo]()
$420
This Delta deal was found by Cheapflights users on 6/2. 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 8/283:58 pm
PHL
- SEA
1 stop10h 59m
Delta
Sun 8/307:50 pm
SEA
- PHL
1 stop7h 15m
Delta
Deal found 6/2![Delta logo]()
$349
This Alaska Airlines deal was found by Cheapflights users on 5/31. 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 8/296:08 pm
PHL
- BLI
1 stop8h 51m
Alaska Airlines
Wed 9/27:19 pm
BLI
- PHL
1 stop7h 21m
Alaska Airlines
Deal found 5/31![Alaska Airlines logo]()
$437
This Southwest deal was found by Cheapflights users on 6/3. 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 7/34:45 pm
PHL
- GEG
2 stops10h 45m
Southwest
Tue 7/75:00 am
GEG
- PHL
2 stops10h 40m
Southwest
Deal found 6/3![Southwest logo]()
$425
This Delta deal was found by Cheapflights users on 5/30. 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 7/245:40 am
PHL
- GEG
1 stop8h 59m
Delta
Tue 7/284:30 pm
GEG
- PHL
1 stop9h 59m
Delta
Deal found 5/30![Delta logo]()
$359
This Alaska Airlines deal was found by Cheapflights users on 6/3. 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 10/214:06 pm
PHL
- BLI
1 stop9h 29m
Alaska Airlines
Sat 10/247:18 pm
BLI
- PHL
1 stop7h 22m
Alaska Airlines
Deal found 6/3![Alaska Airlines logo]()
$439
This Southwest deal was found by Cheapflights users on 6/2. 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.
Tue 8/182:45 pm
PHL
- SEA
2 stops11h 20m
Southwest
Sun 8/3011:05 pm
SEA
- PHL
2 stops11h 10m
Southwest
Deal found 6/2![Southwest logo]()
$433
This Delta deal was found by Cheapflights users on 6/3. 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.
Sat 7/187:05 am
PHL
- GEG
1 stop8h 36m
Delta
Tue 7/284:30 pm
GEG
- PHL
1 stop9h 59m
Delta
Deal found 6/3![Delta logo]()
$359
This Alaska Airlines deal was found by Cheapflights users on 5/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/75:49 pm
PHL
- PSC
1 stop8h 59m
Alaska Airlines
Wed 11/115:29 pm
PSC
- PHL
1 stop9h 04m
Alaska Airlines
Deal found 5/30![Alaska Airlines logo]()
$449
This Southwest deal was found by Cheapflights users on 6/1. 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 7/154:35 pm
PHL
- PDX
1 stop10h 00m
Southwest
Mon 7/2011:30 pm
PDX
- PHL
1 stop9h 40m
Southwest
Deal found 6/1![Southwest logo]()
$437
This Delta deal was found by Cheapflights users on 6/1. 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 9/25:45 am
PHL
- PDX
1 stop8h 01m
Delta
Sat 9/51:30 pm
PDX
- PHL
1 stop7h 26m
Delta
Deal found 6/1![Delta logo]()
$377
This Alaska Airlines deal was found by Cheapflights users on 6/2. 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 10/314:06 pm
PHL
- PSC
2 stops10h 46m
Alaska Airlines
Wed 11/45:29 pm
PSC
- PHL
1 stop9h 04m
Alaska Airlines
Deal found 6/2![Alaska Airlines logo]()
$477
Last-minute flights from Philadelphia to WashingtonDiscover last-minute flight deals from Philadelphia to Washington. Data last updated June 5, 2026 and is based on user searches.
Discover last-minute flight deals from Philadelphia to Washington. Data last updated June 5, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 6/4. 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 6/134:59 pm
PHL
- SEA
1 stop8h 57m
United Airlines
Wed 6/241:30 pm
SEA
- PHL
1 stop8h 59m
United Airlines
Deal found 6/4![United Airlines logo]()
$335
This Delta deal was found by Cheapflights users on 6/2. 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 6/196:51 pm
PHL
- GEG
1 stop8h 08m
Delta
Wed 6/245:20 am
GEG
- PHL
1 stop9h 21m
Delta
Deal found 6/2![Delta logo]()
$317
This American Airlines deal was found by Cheapflights users on 6/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/204:17 pm
PHL
- GEG
1 stop9h 52m
American Airlines
Thu 6/2512:51 pm
GEG
- PHL
1 stop8h 45m
American Airlines
Deal found 6/2![American Airlines logo]()
$332
This American Airlines deal was found by Cheapflights users on 6/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/34:17 pm
PHL
- GEG
1 stop9h 49m
American Airlines
Tue 7/72:29 pm
GEG
- PHL
1 stop7h 30m
American Airlines
Deal found 6/1![American Airlines logo]()
$350
This Alaska Airlines deal was found by Cheapflights users on 6/2. 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 7/47:33 am
PHL
- SEA
Nonstop5h 59m
Alaska Airlines
Thu 7/910:02 pm
SEA
- PHL
Nonstop5h 11m
Alaska Airlines
Deal found 6/2![Alaska Airlines logo]()
$329
This Delta deal was found by Cheapflights users on 6/2. 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.
Sat 7/46:45 pm
PHL
- SEA
Nonstop6h 14m
Delta
Thu 7/95:59 pm
SEA
- PHL
1 stop9h 16m
Delta
Deal found 6/2![Delta logo]()
$339
This Delta deal was found by Cheapflights users on 6/2. 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.
Sat 7/47:23 am
PHL
- SEA
1 stop10h 17m
Delta
Wed 7/82:30 pm
SEA
- PHL
1 stop6h 26m
Delta
Deal found 6/2![Delta logo]()
$349
This American Airlines deal was found by Cheapflights users on 6/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/912:52 pm
PHL
- GEG
1 stop10h 53m
American Airlines
Fri 7/172:29 pm
GEG
- PHL
1 stop7h 30m
American Airlines
Deal found 6/3![American Airlines logo]()
$324
This American Airlines deal was found by Cheapflights users on 6/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/135:30 pm
PHL
- GEG
1 stop8h 36m
American Airlines
Sat 7/186:30 am
GEG
- PHL
1 stop11h 11m
American Airlines
Deal found 6/1![American Airlines logo]()
$305
This American Airlines deal was found by Cheapflights users on 5/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/147:05 am
PHL
- GEG
1 stop9h 54m
American Airlines
Tue 7/212:29 pm
GEG
- PHL
1 stop7h 30m
American Airlines
Deal found 5/31![American Airlines logo]()
$310
This United Airlines deal was found by Cheapflights users on 6/4. 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 7/141:31 pm
PHL
- SEA
1 stop8h 35m
United Airlines
Wed 8/1911:00 pm
SEA
- PHL
1 stop8h 07m
United Airlines
Deal found 6/4![United Airlines logo]()
$343
This Delta deal was found by Cheapflights users on 6/2. 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 7/206:57 pm
PHL
- GEG
1 stop7h 09m
Delta
Tue 7/285:37 pm
GEG
- PHL
1 stop8h 52m
Delta
Deal found 6/2![Delta logo]()
$279
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 June 5, 2026.
Search for one-way flight options from Philadelphia to Washington. Find affordable one-way fares based on user searches. Data last updated June 5, 2026.
This American Airlines deal was found by Cheapflights users on 6/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/157:30 am
PHL
- GEG
1 stop9h 07m
American Airlines
Deal found 6/1![American Airlines logo]()
$111
This Frontier deal was found by Cheapflights users on 6/4. 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.
Fri 7/311:06 am
PHL
- PDX
1 stop9h 18m
Frontier
Deal found 6/4![Frontier logo]()
$139
This Alaska Airlines deal was found by Cheapflights users on 6/2. 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 7/45:46 pm
PHL
- GEG
1 stop8h 13m
Alaska Airlines
Deal found 6/2![Alaska Airlines logo]()
$140
This Expedia deal was found by Cheapflights users on 6/4. 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.
Sun 8/28:37 pm
PHL
- PDX
1 stop23h 14m
Frontier
Deal found 6/4![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 6/2. 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 6/2611:26 am
PHL
- PDX
1 stop7h 41m
Allegiant Air
Deal found 6/2![Allegiant Air logo]()
$147
This CheapOair deal was found by Cheapflights users on 6/4. 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 8/297:50 pm
PHL
- PDX
1 stop18h 51m
Frontier
Deal found 6/4![Frontier logo]()
$150
This CheapOair deal was found by Cheapflights users on 6/2. 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 8/68:37 pm
PHL
- PDX
1 stop23h 14m
Frontier
Deal found 6/2![Frontier logo]()
$154
This Delta deal was found by Cheapflights users on 6/1. 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 6/116:45 pm
PHL
- GEG
1 stop8h 10m
Delta
Deal found 6/1![Delta logo]()
$162
This United Airlines deal was found by Cheapflights users on 6/3. 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 8/316:36 pm
PHL
- PDX
1 stop8h 58m
United Airlines
Deal found 6/3![United Airlines logo]()
$164
This Delta deal was found by Cheapflights users on 6/3. 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 7/297:05 am
PHL
- SEA
Nonstop5h 56m
Delta
Deal found 6/3![Delta logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 9/112:42 pm
PHL
- SEA
1 stop24h 06m
Frontier
Deal found 6/4![Frontier logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 5/31. 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 8/306:07 pm
PHL
- SEA
2 stops43h 28m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$168
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 June 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $221 (Delta) |
One-way from | $111 (American Airlines) |
Popular in | June |
Cheapest in | January |
Average price | $481 |
Good round-trip deal | $354 or less |
Good one-way deal | $204 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 June 5, 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
Sat 8/22
7:00 am-12:16 pm
1 stop8h 16m
Spokane
Sat 8/29
5:39 pm-5:40 am
1 stop9h 01m
$221
PhiladelphiaSpokane
PHL - GEG
PHLGEG
Philadelphia
Thu 8/20
7:00 pm-11:53 pm
1 stop7h 53m
Spokane
Mon 8/31
12:31 pm-1:19 am
1 stop9h 48m
$221
PhiladelphiaSpokane
PHL - GEG
PHLGEG
Philadelphia
Mon 7/13
6:55 pm-11:55 pm
1 stop8h 00m
Spokane
Wed 7/22
5:37 pm-5:29 am
1 stop8h 52m
$279
PhiladelphiaSpokane
PHL - GEG
PHLGEG
Philadelphia
Tue 7/21
7:05 am-12:11 pm
1 stop8h 06m
Spokane
Tue 7/28
4:30 pm-5:29 am
1 stop9h 59m
$279
Quickest round-trip
PhiladelphiaSeattle
PHL - SEA
PHLSEA
Philadelphia
Sun 8/30
6:05 am-10:31 am
1 stop7h 26m
Seattle/Tacoma Intl
Wed 9/9
9:50 pm-6:05 am
Nonstop5h 15m
$339
PhiladelphiaSeattle
PHL - SEA
PHLSEA
Philadelphia
Tue 7/21
6:57 pm-11:58 pm
1 stop8h 01m
Seattle/Tacoma Intl
Tue 7/28
9:20 pm-5:29 am
Nonstop5h 09m
$339
PhiladelphiaSeattle
PHL - SEA
PHLSEA
Philadelphia
Sat 8/22
4:48 pm-10:39 pm
1 stop8h 51m
Seattle/Tacoma Intl
Sun 8/30
6:51 pm-3:45 pm
1 stop17h 54m
$349
PhiladelphiaSeattle
PHL - SEA
PHLSEA
Philadelphia
Tue 8/18
3:58 pm-11:57 pm
1 stop10h 59m
Seattle/Tacoma Intl
Mon 8/31
7:16 am-6:49 pm
1 stop8h 33m
$349
PhiladelphiaSeattle
PHL - SEA
PHLSEA
Philadelphia
Fri 8/28
3:58 pm-11:57 pm
1 stop10h 59m
Seattle/Tacoma Intl
Sun 8/30
7:50 pm-6:05 am
1 stop7h 15m
$349
PhiladelphiaSpokane
PHL - GEG
PHLGEG
Philadelphia
Fri 7/24
5:40 am-11:39 am
1 stop8h 59m
Spokane
Tue 7/28
4:30 pm-5:29 am
1 stop9h 59m
$359
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-GEG
PHL-SEA
PHL-PDX
PHL-YKM
PHL-PUW
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-GEG
PHL-SEA
PHL-PDX
PHL-YKM
What is the cheapest month to book a flight from Philadelphia to State of Washington?
Currently, January is the cheapest month in which you can book a flight from Philadelphia to State of Washington (average of $139). Flying from Philadelphia to State of Washington in September is currently the most expensive (average of $990). 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 June 5, 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 June 5, 2026.
The most flights from PHL to USWA are scheduled on a Wednesday (10 on average). You will have fewer flight options on Monday, 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?
How far ahead should I book a flight from Philadelphia to State of Washington?
The best time to book flights from Philadelphia to State of Washington is 70 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
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 June 5, 2026.
Read through reviews of airlines operating flights from Philadelphia to Washington, such as Alaska Airlines,Delta, andUnited Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Food
7.1
Overall
7.9
Comfort
7.8
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Boarding
8.1
Food
7.1
Overall
7.9
Comfort
7.8
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Boarding
8.1
Food
7.1
Overall
7.9
Comfort
7.8
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Boarding
8.1
Food
7.1
Overall
7.9
Comfort
7.8
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Boarding
8.1
Food
7.1
Overall
7.9
Comfort
7.8
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Boarding
8.1
Food
7.1
Overall
7.9
Comfort
7.8
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - 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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Complete your trip
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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 June 5, 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 7 airlines flying from Philadelphia to Washington
Discover the top 7 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 June 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$131 | Average$297 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$173 | Average$432 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$198 | Average$458 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$201 | Average$446 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$240 | Average$488 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$258 | Average$463 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$269 | Average$424 | FlexibilityNo cancel fee | On-time71% |