$100+ 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 4/30. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SEA
May 19 — May 261
Round-trip
1 adult, Economy
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Find cheap flights from Philadelphia to Washington with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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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 April 19, 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 April 19, 2026.
This Frontier deal was found by Cheapflights users on 4/16. 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.
Sun 5/108:35 pm
PHL
- GEG
1 stop18h 03m
Frontier
Mon 5/1812:33 pm
GEG
- PHL
1 stop14h 04m
Frontier
Deal found 4/16![Frontier logo]()
$206
This Delta deal was found by Cheapflights users on 4/17. 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 6/37:25 am
PHL
- GEG
1 stop7h 36m
Delta
Wed 6/104:30 pm
GEG
- PHL
1 stop10h 15m
Delta
Deal found 4/17![Delta logo]()
$279
This Delta deal was found by Cheapflights users on 4/16. 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 6/35:17 am
PHL
- GEG
2 stops10h 54m
Delta
Thu 6/112:23 pm
GEG
- PHL
1 stop6h 36m
Delta
Deal found 4/16![Delta logo]()
$284
This American Airlines deal was found by Cheapflights users on 4/17. 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 5/196:00 am
PHL
- GEG
1 stop9h 23m
American Airlines
Sat 5/232:08 pm
GEG
- PHL
1 stop6h 58m
American Airlines
Deal found 4/17![American Airlines logo]()
$287
This Kiwi.com deal was found by Cheapflights users on 4/17. 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 5/288:35 pm
PHL
- SEA
1 stop16h 31m
Frontier
Wed 6/37:50 pm
SEA
- PHL
2 stops25h 50m
Frontier
Deal found 4/17![Frontier logo]()
$289
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 5/288:35 pm
PHL
- SEA
1 stop20h 26m
Frontier
Mon 6/17:50 pm
SEA
- PHL
2 stops17h 48m
Frontier
Deal found 4/14![Frontier logo]()
$291
This Kiwi.com deal was found by Cheapflights users on 4/15. 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 5/18:41 pm
PHL
- SEA
1 stop15h 46m
Frontier
Thu 5/77:50 pm
SEA
- PHL
1 stop30h 47m
Frontier
Deal found 4/15![Frontier logo]()
$292
This Trip.com deal was found by Cheapflights users on 4/17. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/248:41 pm
PHL
- SEA
1 stop15h 46m
Frontier
Thu 4/307:12 pm
SEA
- PHL
1 stop7h 22m
Frontier
Deal found 4/17![Frontier logo]()
$293
This Expedia deal was found by Cheapflights users on 4/14. 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.
Thu 4/306:43 am
PHL
- SEA
1 stop16h 09m
Multiple Airlines
Fri 5/89:44 pm
SEA
- PHL
Nonstop5h 18m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$294
This Kiwi.com deal was found by Cheapflights users on 4/17. 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 5/278:35 pm
PHL
- SEA
1 stop16h 31m
Frontier
Tue 6/27:50 pm
SEA
- PHL
1 stop30h 47m
Frontier
Deal found 4/17![Frontier logo]()
$295
This Kiwi.com deal was found by Cheapflights users on 4/17. 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 5/78:35 pm
PHL
- SEA
1 stop16h 14m
Frontier
Mon 5/117:50 pm
SEA
- PHL
2 stops34h 09m
Frontier
Deal found 4/17![Frontier logo]()
$296
This American Airlines deal was found by Cheapflights users on 4/16. 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 5/217:34 am
PHL
- GEG
1 stop8h 40m
American Airlines
Wed 5/272:08 pm
GEG
- PHL
1 stop7h 23m
American Airlines
Deal found 4/16![American Airlines logo]()
$297
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 April 19, 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 April 19, 2026.
This Delta deal was found by Cheapflights users on 4/15. 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 5/147:10 am
PHL
- GEG
1 stop8h 03m
Delta
Tue 5/194:15 pm
GEG
- PHL
1 stop10h 22m
Delta
Deal found 4/15![Delta logo]()
$279
This Southwest deal was found by Cheapflights users on 4/17. 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 7/294:35 pm
PHL
- SEA
1 stop10h 45m
Southwest
Thu 8/65:15 am
SEA
- PHL
1 stop9h 40m
Southwest
Deal found 4/17![Southwest logo]()
$349
This Alaska Airlines deal was found by Cheapflights users on 4/15. 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 9/127:00 am
PHL
- PDX
1 stop10h 27m
Alaska Airlines
Mon 9/147:05 am
PDX
- PHL
1 stop19h 35m
Alaska Airlines
Deal found 4/15![Alaska Airlines logo]()
$427
This American Airlines deal was found by Cheapflights users on 4/14. 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 6/194:17 pm
PHL
- PSC
1 stop10h 08m
American Airlines
Tue 6/233:29 pm
PSC
- PHL
1 stop11h 05m
American Airlines
Deal found 4/14![American Airlines logo]()
$464
This United Airlines deal was found by Cheapflights users on 4/14. 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 5/291:31 pm
PHL
- PSC
2 stops14h 19m
United Airlines
Mon 6/11:35 pm
PSC
- PHL
1 stop8h 54m
United Airlines
Deal found 4/14![United Airlines logo]()
$504
This Delta deal was found by Cheapflights users on 4/14. 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 7/292:32 pm
PHL
- GEG
1 stop10h 01m
Delta
Mon 8/310:48 pm
GEG
- PHL
1 stop7h 43m
Delta
Deal found 4/14![Delta logo]()
$279
This Delta deal was found by Cheapflights users on 4/15. 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 6/312:38 pm
PHL
- GEG
2 stops13h 11m
Delta
Wed 6/104:30 pm
GEG
- PHL
1 stop10h 15m
Delta
Deal found 4/15![Delta logo]()
$284
This Delta deal was found by Cheapflights users on 4/16. 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 8/52:32 pm
PHL
- GEG
2 stops12h 23m
Delta
Wed 8/125:00 pm
GEG
- PHL
2 stops13h 38m
Delta
Deal found 4/16![Delta logo]()
$290
This Southwest deal was found by Cheapflights users on 4/14. 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 9/196:30 am
PHL
- SEA
2 stops10h 50m
Southwest
Mon 9/2811:05 pm
SEA
- PHL
1 stop9h 30m
Southwest
Deal found 4/14![Southwest logo]()
$354
This Delta deal was found by Cheapflights users on 4/15. 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 6/32:23 pm
PHL
- GEG
2 stops12h 12m
Delta
Thu 6/114:30 pm
GEG
- PHL
2 stops10h 38m
Delta
Deal found 4/15![Delta logo]()
$290
This Southwest deal was found by Cheapflights users on 4/17. 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.
Thu 8/2710:20 am
PHL
- SEA
2 stops10h 15m
Southwest
Mon 8/318:20 pm
SEA
- PHL
2 stops12h 15m
Southwest
Deal found 4/17![Southwest logo]()
$359
This Delta deal was found by Cheapflights users on 4/16. 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 6/15:18 pm
PHL
- GEG
2 stops9h 17m
Delta
Thu 6/45:39 pm
GEG
- PHL
2 stops12h 16m
Delta
Deal found 4/16![Delta logo]()
$290
This Orbitz deal was found by Cheapflights users on 4/15. 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 9/234:44 pm
PHL
- BLI
1 stop8h 47m
Alaska Airlines
Wed 9/302:06 pm
BLI
- PHL
1 stop12h 34m
Alaska Airlines
Deal found 4/15![Alaska Airlines logo]()
$429
This Southwest deal was found by Cheapflights users on 4/15. 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 6/35:45 pm
PHL
- PDX
1 stop8h 25m
Southwest
Sun 6/79:45 pm
PDX
- PHL
2 stops9h 50m
Southwest
Deal found 4/15![Southwest logo]()
$377
This Alaska Airlines deal was found by Cheapflights users on 4/14. 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 5/287:16 pm
PHL
- BLI
1 stop7h 51m
Alaska Airlines
Mon 6/15:53 pm
BLI
- PHL
1 stop8h 42m
Alaska Airlines
Deal found 4/14![Alaska Airlines logo]()
$429
This Delta deal was found by Cheapflights users on 4/14. 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 6/17:25 am
PHL
- GEG
1 stop7h 36m
Delta
Fri 6/56:45 pm
GEG
- PHL
1 stop8h 25m
Delta
Deal found 4/14![Delta logo]()
$312
This Southwest deal was found by Cheapflights users on 4/14. 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 9/1810:20 am
PHL
- SEA
2 stops10h 15m
Southwest
Sun 9/2711:05 pm
SEA
- PHL
2 stops11h 10m
Southwest
Deal found 4/14![Southwest logo]()
$379
This Alaska Airlines deal was found by Cheapflights users on 4/16. 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 9/167:00 am
PHL
- EAT
1 stop10h 31m
Alaska Airlines
Wed 9/233:11 pm
EAT
- PHL
1 stop11h 29m
Alaska Airlines
Deal found 4/16![Alaska Airlines logo]()
$438
This Delta deal was found by Cheapflights users on 4/14. 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 5/87:01 pm
PHL
- GEG
1 stop7h 05m
Delta
Tue 5/125:00 am
GEG
- PHL
2 stops9h 27m
Delta
Deal found 4/14![Delta logo]()
$317
This Alaska Airlines deal was found by Cheapflights users on 4/16. 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 5/134:45 pm
PHL
- PDX
Nonstop5h 52m
Alaska Airlines
Wed 5/209:44 am
PDX
- PHL
1 stop16h 51m
Alaska Airlines
Deal found 4/16![Alaska Airlines logo]()
$442
This Southwest deal was found by Cheapflights users on 4/14. 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.
Thu 10/111:20 am
PHL
- PDX
2 stops10h 40m
Southwest
Wed 10/76:00 am
PDX
- PHL
1 stop7h 40m
Southwest
Deal found 4/14![Southwest logo]()
$412
This Delta deal was found by Cheapflights users on 4/15. 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 8/226:15 am
PHL
- GEG
1 stop9h 52m
Delta
Sat 8/2912:40 pm
GEG
- PHL
1 stop9h 21m
Delta
Deal found 4/15![Delta logo]()
$328
This Alaska Airlines deal was found by Cheapflights users on 4/17. 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 9/296:06 pm
PHL
- YKM
1 stop8h 49m
Alaska Airlines
Sat 10/35:13 am
YKM
- PHL
1 stop8h 43m
Alaska Airlines
Deal found 4/17![Alaska Airlines logo]()
$449
This Southwest deal was found by Cheapflights users on 4/18. 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 5/2611:35 am
PHL
- PDX
2 stops12h 10m
Southwest
Sun 5/3111:55 pm
PDX
- PHL
1 stop7h 40m
Southwest
Deal found 4/18![Southwest logo]()
$422
This Delta deal was found by Cheapflights users on 4/17. 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 7/297:08 am
PHL
- SEA
Nonstop5h 56m
Delta
Wed 8/129:50 pm
SEA
- PHL
Nonstop5h 15m
Delta
Deal found 4/17![Delta logo]()
$329
This Southwest deal was found by Cheapflights users on 4/18. 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.
Thu 6/412:35 pm
PHL
- PDX
1 stop11h 25m
Southwest
Thu 6/1112:15 pm
PDX
- PHL
2 stops9h 25m
Southwest
Deal found 4/18![Southwest logo]()
$423
This American Airlines deal was found by Cheapflights users on 4/16. 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 9/1612:40 pm
PHL
- EAT
2 stops14h 19m
American Airlines
Wed 9/233:11 pm
EAT
- PHL
2 stops11h 24m
American Airlines
Deal found 4/16![American Airlines logo]()
$764
This Delta deal was found by Cheapflights users on 4/18. 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 7/127:08 am
PHL
- SEA
Nonstop5h 56m
Delta
Mon 7/209:30 pm
SEA
- PHL
Nonstop5h 23m
Delta
Deal found 4/18![Delta logo]()
$329
This Alaska Airlines deal was found by Cheapflights users on 4/15. 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 4/306:58 pm
PHL
- PUW
1 stop8h 01m
Alaska Airlines
Wed 5/67:28 pm
PUW
- PHL
1 stop7h 34m
Alaska Airlines
Deal found 4/15![Alaska Airlines logo]()
$509
This Southwest deal was found by Cheapflights users on 4/18. 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 8/116:00 am
PHL
- PDX
1 stop7h 50m
Southwest
Fri 8/2110:55 am
PDX
- PHL
1 stop7h 10m
Southwest
Deal found 4/18![Southwest logo]()
$427
Last-minute flights from Philadelphia to WashingtonDiscover last-minute flight deals from Philadelphia to Washington. Data last updated April 19, 2026 and is based on user searches.
Discover last-minute flight deals from Philadelphia to Washington. Data last updated April 19, 2026 and is based on user searches.
This Trip.com deal was found by Cheapflights users on 4/17. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/248:41 pm
PHL
- SEA
1 stop15h 46m
Frontier
Thu 4/307:12 pm
SEA
- PHL
1 stop7h 22m
Frontier
Deal found 4/17![Frontier logo]()
$293
This Expedia deal was found by Cheapflights users on 4/14. 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.
Thu 4/306:43 am
PHL
- SEA
1 stop16h 09m
Multiple Airlines
Fri 5/89:44 pm
SEA
- PHL
Nonstop5h 18m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$294
This Kiwi.com deal was found by Cheapflights users on 4/15. 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 5/18:41 pm
PHL
- SEA
1 stop15h 46m
Frontier
Thu 5/77:50 pm
SEA
- PHL
1 stop30h 47m
Frontier
Deal found 4/15![Frontier logo]()
$292
This Kiwi.com deal was found by Cheapflights users on 4/17. 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 5/78:35 pm
PHL
- SEA
1 stop16h 14m
Frontier
Mon 5/117:50 pm
SEA
- PHL
2 stops34h 09m
Frontier
Deal found 4/17![Frontier logo]()
$296
This Frontier deal was found by Cheapflights users on 4/16. 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.
Sun 5/108:35 pm
PHL
- GEG
1 stop18h 03m
Frontier
Mon 5/1812:33 pm
GEG
- PHL
1 stop14h 04m
Frontier
Deal found 4/16![Frontier logo]()
$206
This Delta deal was found by Cheapflights users on 4/15. 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 5/147:10 am
PHL
- GEG
1 stop8h 03m
Delta
Thu 5/215:37 pm
GEG
- PHL
1 stop9h 00m
Delta
Deal found 4/15![Delta logo]()
$279
This Delta deal was found by Cheapflights users on 4/15. 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 5/147:10 am
PHL
- GEG
1 stop8h 03m
Delta
Tue 5/197:23 pm
GEG
- PHL
2 stops12h 07m
Delta
Deal found 4/15![Delta logo]()
$284
This American Airlines deal was found by Cheapflights users on 4/17. 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 5/196:00 am
PHL
- GEG
1 stop9h 23m
American Airlines
Sat 5/232:08 pm
GEG
- PHL
1 stop6h 58m
American Airlines
Deal found 4/17![American Airlines logo]()
$287
This Kiwi.com deal was found by Cheapflights users on 4/17. 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 5/278:35 pm
PHL
- SEA
1 stop16h 31m
Frontier
Tue 6/27:50 pm
SEA
- PHL
1 stop30h 47m
Frontier
Deal found 4/17![Frontier logo]()
$295
This Kiwi.com deal was found by Cheapflights users on 4/17. 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 5/288:35 pm
PHL
- SEA
1 stop16h 31m
Frontier
Wed 6/37:50 pm
SEA
- PHL
2 stops25h 50m
Frontier
Deal found 4/17![Frontier logo]()
$289
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 5/288:35 pm
PHL
- SEA
1 stop20h 26m
Frontier
Mon 6/17:50 pm
SEA
- PHL
2 stops17h 48m
Frontier
Deal found 4/14![Frontier logo]()
$291
This Delta deal was found by Cheapflights users on 4/15. 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 5/306:12 am
PHL
- GEG
2 stops9h 59m
Delta
Sat 6/65:35 am
GEG
- PHL
2 stops10h 02m
Delta
Deal found 4/15![Delta logo]()
$290
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 April 19, 2026.
Search for one-way flight options from Philadelphia to Washington. Find affordable one-way fares based on user searches. Data last updated April 19, 2026.
This Expedia deal was found by Cheapflights users on 4/14. 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.
Thu 4/306:43 am
PHL
- PDX
1 stop10h 27m
Frontier
Deal found 4/14![Frontier logo]()
$100
This Booking.com deal was found by Cheapflights users on 4/14. 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 4/298:31 pm
PHL
- PDX
1 stop17h 32m
Frontier
Deal found 4/14![Frontier logo]()
$106
This CheapOair deal was found by Cheapflights users on 4/15. 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 5/18:41 pm
PHL
- PDX
1 stop18h 01m
Frontier
Deal found 4/15![Frontier logo]()
$112
This Expedia deal was found by Cheapflights users on 4/15. 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 5/318:35 pm
PHL
- PDX
1 stop23h 11m
Frontier
Deal found 4/15![Frontier logo]()
$116
This Kiwi.com deal was found by Cheapflights users on 4/15. 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 5/288:35 pm
PHL
- PDX
2 stops42h 15m
Frontier
Deal found 4/15![Frontier logo]()
$118
This Frontier deal was found by Cheapflights users on 4/14. 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 6/1111:06 am
PHL
- PDX
1 stop9h 18m
Frontier
Deal found 4/14![Frontier logo]()
$125
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 5/128:35 pm
PHL
- PDX
2 stops42h 15m
Frontier
Deal found 4/14![Frontier logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 4/18. 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 5/198:35 pm
PHL
- PDX
2 stops40h 45m
Frontier
Deal found 4/18![Frontier logo]()
$134
This Mytrip deal was found by Cheapflights users on 4/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/236:43 am
PHL
- PDX
1 stop10h 16m
Frontier
Deal found 4/17![Frontier logo]()
$135
This CheapOair deal was found by Cheapflights users on 4/14. 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 6/1612:42 pm
PHL
- PDX
1 stop30h 53m
Frontier
Deal found 4/14![Frontier logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 4/15. 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 5/132:45 pm
PHL
- PDX
2 stops33h 06m
Frontier
Deal found 4/15![Frontier logo]()
$138
This Delta deal was found by Cheapflights users on 4/16. 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 6/224:10 pm
PHL
- GEG
1 stop8h 24m
Delta
Deal found 4/16![Delta logo]()
$140
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 April 19, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $206 (Frontier) |
One-way from | $100 (Expedia) |
Popular in | June |
Cheapest in | January |
Average price | $414 |
Good round-trip deal | $382 or less |
Good one-way deal | $222 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 April 19, 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
Thu 5/14
7:10 am-12:13 pm
1 stop8h 03m
Spokane
Tue 5/19
4:15 pm-5:37 am
1 stop10h 22m
$279
PhiladelphiaSpokane
PHL - GEG
PHLGEG
Philadelphia
Wed 7/29
2:32 pm-9:33 pm
1 stop10h 01m
Spokane
Mon 8/3
10:48 pm-9:31 am
1 stop7h 43m
$279
PhiladelphiaSpokane
PHL - GEG
PHLGEG
Philadelphia
Wed 6/3
12:38 pm-10:49 pm
2 stops13h 11m
Spokane
Wed 6/10
4:30 pm-5:45 am
1 stop10h 15m
$284
PhiladelphiaSpokane
PHL - GEG
PHLGEG
Philadelphia
Wed 8/5
2:32 pm-11:55 pm
2 stops12h 23m
Spokane
Wed 8/12
5:00 pm-9:38 am
2 stops13h 38m
$290
PhiladelphiaSpokane
PHL - GEG
PHLGEG
Philadelphia
Wed 6/3
2:23 pm-11:35 pm
2 stops12h 12m
Spokane
Thu 6/11
4:30 pm-6:08 am
2 stops10h 38m
$290
PhiladelphiaSpokane
PHL - GEG
PHLGEG
Philadelphia
Mon 6/1
5:18 pm-11:35 pm
2 stops9h 17m
Spokane
Thu 6/4
5:39 pm-8:55 am
2 stops12h 16m
$290
PhiladelphiaSpokane
PHL - GEG
PHLGEG
Philadelphia
Mon 6/1
7:25 am-12:01 pm
1 stop7h 36m
Spokane
Fri 6/5
6:45 pm-6:10 am
1 stop8h 25m
$312
PhiladelphiaSpokane
PHL - GEG
PHLGEG
Philadelphia
Fri 5/8
7:01 pm-11:06 pm
1 stop7h 05m
Spokane
Tue 5/12
5:00 am-5:27 pm
2 stops9h 27m
$317
PhiladelphiaSpokane
PHL - GEG
PHLGEG
Philadelphia
Sat 8/22
6:15 am-1:07 pm
1 stop9h 52m
Spokane
Sat 8/29
12:40 pm-1:01 am
1 stop9h 21m
$328
Quickest round-trip
PhiladelphiaSeattle
PHL - SEA
PHLSEA
Philadelphia
Wed 7/29
7:08 am-10:04 am
Nonstop5h 56m
Seattle/Tacoma Intl
Wed 8/12
9:50 pm-6:05 am
Nonstop5h 15m
$329
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-PSC
PHL-BLI
PHL-PDX
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-PSC
PHL-BLI
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 $959). 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 April 19, 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 April 19, 2026.
The most flights from PHL to USWA are scheduled on a Saturday (8 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (3 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 April 19, 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
7.0
Crew
8.5
Overall
7.9
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Boarding
8.1
Food
7.0
Crew
8.5
Overall
7.9
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Boarding
8.1
Food
7.0
Crew
8.5
Overall
7.9
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Boarding
8.1
Food
7.0
Crew
8.5
Overall
7.9
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Boarding
8.1
Food
7.0
Crew
8.5
Overall
7.9
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Boarding
8.1
Food
7.0
Crew
8.5
Overall
7.9
Entertainment
7.0
Comfort
7.8
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
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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 April 19, 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 April 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$115 | Average$228 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$130 | Average$288 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$199 | Average$470 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$203 | Average$439 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$229 | Average$434 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$247 | Average$502 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$258 | Average$470 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$277 | Average$407 | FlexibilityNo cancel fee | On-time71% |