$82+ 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 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SEA
May 8 — May 151
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 April 8, 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 8, 2026.
This Trip.com deal was found by Cheapflights users on 4/7. 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.
Wed 4/228:41 pm
PHL
- GEG
1 stop17h 08m
Frontier
Sun 4/2611:44 am
GEG
- PHL
1 stop14h 50m
Frontier
Deal found 4/7![Frontier logo]()
$217
This Southwest deal was found by Cheapflights users on 4/6. 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 4/305:40 am
PHL
- GEG
1 stop7h 10m
Southwest
Mon 5/42:50 pm
GEG
- PHL
1 stop6h 45m
Southwest
Deal found 4/6![Southwest logo]()
$279
This CheapOair deal was found by Cheapflights users on 4/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2012:42 pm
PHL
- SEA
1 stop28h 22m
Frontier
Mon 8/247:41 pm
SEA
- PHL
1 stop13h 06m
Frontier
Deal found 4/3![Frontier logo]()
$281
This Kiwi.com deal was found by Cheapflights users on 4/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/118:35 pm
PHL
- SEA
1 stop16h 14m
Frontier
Fri 5/157:50 pm
SEA
- PHL
1 stop30h 47m
Frontier
Deal found 4/3![Frontier logo]()
$282
This Kiwi.com deal was found by Cheapflights users on 4/3. 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 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 5/210:57 am
SEA
- PHL
2 stops27h 37m
Frontier
Deal found 4/3![Frontier logo]()
$283
This Delta deal was found by Cheapflights users on 4/3. 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.
Thu 4/305:32 pm
PHL
- GEG
2 stops9h 48m
Delta
Thu 5/74:15 pm
GEG
- PHL
1 stop10h 22m
Delta
Deal found 4/3![Delta logo]()
$284
This Expedia deal was found by Cheapflights users on 4/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/257:22 am
PHL
- SEA
Nonstop5h 58m
Multiple Airlines
Sat 5/27:12 pm
SEA
- PHL
1 stop7h 23m
Multiple Airlines
Deal found 4/3![Multiple Airlines logo]()
$284
This American Airlines deal was found by Cheapflights users on 4/7. 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 5/65:30 pm
PHL
- GEG
1 stop8h 40m
American Airlines
Wed 5/131:13 pm
GEG
- PHL
1 stop7h 46m
American Airlines
Deal found 4/7![American Airlines logo]()
$285
This Kiwi.com deal was found by Cheapflights users on 4/6. 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
Tue 5/57:50 pm
SEA
- PHL
1 stop30h 47m
Frontier
Deal found 4/6![Frontier logo]()
$285
This Kiwi.com deal was found by Cheapflights users on 4/7. 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 4/211:30 pm
PHL
- SEA
2 stops22h 57m
Frontier
Fri 5/87:50 pm
SEA
- PHL
1 stop30h 47m
Frontier
Deal found 4/7![Frontier logo]()
$286
This Kiwi.com deal was found by Cheapflights users on 4/4. 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.
Sat 5/98:35 pm
PHL
- SEA
1 stop16h 14m
Frontier
Wed 5/137:50 pm
SEA
- PHL
1 stop30h 47m
Frontier
Deal found 4/4![Frontier logo]()
$287
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 4/205:05 am
PHL
- SEA
2 stops31h 22m
Frontier
Fri 5/14:20 pm
SEA
- PHL
1 stop10h 14m
Frontier
Deal found 4/6![Frontier logo]()
$288
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 8, 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 8, 2026.
This Delta deal was found by Cheapflights users on 4/3. 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 8/56:55 pm
PHL
- GEG
1 stop8h 00m
Delta
Wed 8/125:40 pm
GEG
- PHL
1 stop9h 25m
Delta
Deal found 4/3![Delta logo]()
$279
This Southwest deal was found by Cheapflights users on 4/6. 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 4/305:40 am
PHL
- GEG
1 stop7h 10m
Southwest
Mon 5/42:50 pm
GEG
- PHL
1 stop6h 45m
Southwest
Deal found 4/6![Southwest logo]()
$279
This United Airlines deal was found by Cheapflights users on 4/7. 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.
Wed 4/2910:33 am
PHL
- SEA
2 stops11h 27m
United Airlines
Wed 4/2911:59 pm
SEA
- PHL
1 stop7h 00m
United Airlines
Deal found 4/7![United Airlines logo]()
$358
This American Airlines deal was found by Cheapflights users on 4/3. 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.
Tue 6/234:17 pm
PHL
- PSC
1 stop10h 08m
American Airlines
Tue 6/303:29 pm
PSC
- PHL
1 stop11h 05m
American Airlines
Deal found 4/3![American Airlines logo]()
$389
This Alaska Airlines deal was found by Cheapflights users on 4/3. 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 5/234:45 pm
PHL
- PDX
Nonstop5h 52m
Alaska Airlines
Sun 5/317:40 am
PDX
- PHL
Nonstop5h 05m
Alaska Airlines
Deal found 4/3![Alaska Airlines logo]()
$407
This Delta deal was found by Cheapflights users on 4/3. 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 6/37:10 am
PHL
- GEG
1 stop8h 01m
Delta
Wed 6/1010:48 pm
GEG
- PHL
1 stop7h 46m
Delta
Deal found 4/3![Delta logo]()
$279
This Delta deal was found by Cheapflights users on 4/3. 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.
Thu 4/305:32 pm
PHL
- GEG
2 stops9h 48m
Delta
Thu 5/77:23 pm
GEG
- PHL
1 stop7h 14m
Delta
Deal found 4/3![Delta logo]()
$284
This Southwest deal was found by Cheapflights users on 4/3. 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 5/86:00 pm
PHL
- SEA
1 stop9h 05m
Southwest
Mon 5/119:00 pm
SEA
- PHL
2 stops10h 50m
Southwest
Deal found 4/3![Southwest logo]()
$342
This Delta deal was found by Cheapflights users on 4/3. 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.
Thu 4/305:32 pm
PHL
- GEG
2 stops9h 48m
Delta
Tue 5/56:00 am
GEG
- PHL
2 stops10h 18m
Delta
Deal found 4/3![Delta logo]()
$290
This Delta deal was found by Cheapflights users on 4/3. 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 6/33:44 pm
PHL
- GEG
2 stops10h 51m
Delta
Thu 6/115:34 am
GEG
- PHL
2 stops10h 46m
Delta
Deal found 4/3![Delta logo]()
$290
This Southwest deal was found by Cheapflights users on 4/6. 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 5/25:00 pm
PHL
- SEA
1 stop8h 10m
Southwest
Sat 5/95:45 am
SEA
- PHL
1 stop7h 30m
Southwest
Deal found 4/6![Southwest logo]()
$353
This Alaska Airlines deal was found by Cheapflights users on 4/7. 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 5/297:16 pm
PHL
- PSC
1 stop7h 58m
Alaska Airlines
Mon 6/17:17 pm
PSC
- PHL
1 stop7h 18m
Alaska Airlines
Deal found 4/7![Alaska Airlines logo]()
$419
This Southwest deal was found by Cheapflights users on 4/5. 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 5/88:55 am
PHL
- SEA
2 stops13h 10m
Southwest
Fri 5/811:55 pm
SEA
- PHL
1 stop7h 40m
Southwest
Deal found 4/5![Southwest logo]()
$354
This Delta deal was found by Cheapflights users on 4/7. 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 7/132:32 pm
PHL
- GEG
2 stops11h 35m
Delta
Wed 7/155:05 pm
GEG
- PHL
2 stops12h 36m
Delta
Deal found 4/7![Delta logo]()
$309
This United Airlines deal was found by Cheapflights users on 4/6. 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 4/2110:00 am
PHL
- PSC
2 stops14h 01m
United Airlines
Sat 4/255:00 am
PSC
- PHL
1 stop7h 47m
United Airlines
Deal found 4/6![United Airlines logo]()
$454
This Alaska Airlines deal was found by Cheapflights users on 4/3. 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.
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 4/3![Alaska Airlines logo]()
$423
This Southwest deal was found by Cheapflights users on 4/5. 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 4/282:00 pm
PHL
- SEA
2 stops11h 30m
Southwest
Sat 5/27:30 am
SEA
- PHL
2 stops12h 30m
Southwest
Deal found 4/5![Southwest logo]()
$363
This Alaska Airlines deal was found by Cheapflights users on 4/4. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/17:00 am
PHL
- PDX
1 stop9h 39m
Alaska Airlines
Sun 10/48:34 am
PDX
- PHL
1 stop17h 53m
Alaska Airlines
Deal found 4/4![Alaska Airlines logo]()
$427
This Delta deal was found by Cheapflights users on 4/5. 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
Thu 7/169:30 pm
SEA
- PHL
Nonstop5h 23m
Delta
Deal found 4/5![Delta logo]()
$329
This Alaska Airlines deal was found by Cheapflights users on 4/6. 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
Sat 5/27:28 pm
PUW
- PHL
1 stop7h 34m
Alaska Airlines
Deal found 4/6![Alaska Airlines logo]()
$429
This Southwest deal was found by Cheapflights users on 4/6. 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 8/196:00 am
PHL
- PDX
1 stop7h 50m
Southwest
Sun 8/2311:30 pm
PDX
- PHL
1 stop8h 40m
Southwest
Deal found 4/6![Southwest logo]()
$409
This Delta deal was found by Cheapflights users on 4/5. 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 8/276:40 pm
PHL
- SEA
1 stop8h 21m
Delta
Fri 9/49:50 pm
SEA
- PHL
Nonstop5h 15m
Delta
Deal found 4/5![Delta logo]()
$339
This Alaska Airlines deal was found by Cheapflights users on 4/7. 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
Sun 5/37:28 pm
PUW
- PHL
1 stop7h 34m
Alaska Airlines
Deal found 4/7![Alaska Airlines logo]()
$429
This Delta deal was found by Cheapflights users on 4/3. 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.
Fri 7/246:57 pm
PHL
- SEA
1 stop8h 01m
Delta
Tue 8/49:30 pm
SEA
- PHL
Nonstop5h 23m
Delta
Deal found 4/3![Delta logo]()
$339
This Southwest deal was found by Cheapflights users on 4/5. 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 6/106:40 pm
PHL
- PDX
1 stop7h 50m
Southwest
Thu 6/1812:15 pm
PDX
- PHL
2 stops9h 25m
Southwest
Deal found 4/5![Southwest logo]()
$414
This Alaska Airlines deal was found by Cheapflights users on 4/3. 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.
Fri 4/246:58 pm
PHL
- BLI
1 stop8h 01m
Alaska Airlines
Mon 4/277:19 pm
BLI
- PHL
1 stop7h 43m
Alaska Airlines
Deal found 4/3![Alaska Airlines logo]()
$429
This Southwest deal was found by Cheapflights users on 4/6. 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 9/112:35 pm
PHL
- PDX
2 stops10h 15m
Southwest
Tue 9/811:30 pm
PDX
- PHL
1 stop9h 05m
Southwest
Deal found 4/6![Southwest logo]()
$414
This Delta deal was found by Cheapflights users on 4/6. 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 5/296:45 pm
PHL
- SEA
1 stop8h 27m
Delta
Mon 6/15:45 pm
SEA
- PHL
1 stop9h 25m
Delta
Deal found 4/6![Delta logo]()
$349
This Alaska Airlines deal was found by Cheapflights users on 4/6. 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 6/44:45 pm
PHL
- BLI
1 stop9h 06m
Alaska Airlines
Tue 6/95:53 pm
BLI
- PHL
1 stop8h 42m
Alaska Airlines
Deal found 4/6![Alaska Airlines logo]()
$429
This Southwest deal was found by Cheapflights users on 4/3. 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.
Thu 10/112:40 pm
PHL
- PDX
2 stops9h 20m
Southwest
Mon 10/511:35 pm
PDX
- PHL
1 stop8h 25m
Southwest
Deal found 4/3![Southwest logo]()
$432
Last-minute flights from Philadelphia to WashingtonDiscover last-minute flight deals from Philadelphia to Washington. Data last updated April 8, 2026 and is based on user searches.
Discover last-minute flight deals from Philadelphia to Washington. Data last updated April 8, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 4/3. 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 Mytrip 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 4/3![Frontier logo]()
$299
This CheapOair deal was found by Cheapflights users on 4/4. 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.
Wed 4/158:41 pm
PHL
- SEA
1 stop15h 46m
Frontier
Sat 4/187:12 pm
SEA
- PHL
1 stop7h 23m
Frontier
Deal found 4/4![Frontier logo]()
$297
This CheapOair deal was found by Cheapflights users on 4/3. 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 CheapOair 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
Sat 4/257:12 pm
SEA
- PHL
1 stop7h 23m
Frontier
Deal found 4/3![Frontier logo]()
$291
This CheapOair deal was found by Cheapflights users on 4/5. 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 4/178:36 pm
PHL
- SEA
1 stop15h 51m
Frontier
Tue 4/217:12 pm
SEA
- PHL
1 stop7h 22m
Frontier
Deal found 4/5![Frontier logo]()
$301
This Trip.com deal was found by Cheapflights users on 4/7. 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.
Wed 4/228:41 pm
PHL
- GEG
1 stop17h 08m
Frontier
Sun 4/2611:44 am
GEG
- PHL
1 stop14h 50m
Frontier
Deal found 4/7![Frontier logo]()
$217
This Southwest deal was found by Cheapflights users on 4/6. 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 4/275:40 am
PHL
- GEG
2 stops11h 30m
Southwest
Wed 4/295:10 am
GEG
- PHL
2 stops9h 40m
Southwest
Deal found 4/6![Southwest logo]()
$289
This Southwest deal was found by Cheapflights users on 4/6. 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 4/305:40 am
PHL
- GEG
1 stop7h 10m
Southwest
Mon 5/42:50 pm
GEG
- PHL
1 stop6h 45m
Southwest
Deal found 4/6![Southwest logo]()
$279
This Delta deal was found by Cheapflights users on 4/3. 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.
Thu 4/305:32 pm
PHL
- GEG
2 stops9h 48m
Delta
Mon 5/46:00 am
GEG
- PHL
1 stop9h 08m
Delta
Deal found 4/3![Delta logo]()
$284
This Delta deal was found by Cheapflights users on 4/3. 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.
Thu 4/305:32 pm
PHL
- GEG
2 stops9h 48m
Delta
Sat 5/26:00 am
GEG
- PHL
2 stops11h 53m
Delta
Deal found 4/3![Delta logo]()
$290
This Kiwi.com deal was found by Cheapflights users on 4/5. 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
- PDX
1 stop17h 27m
Frontier
Sun 5/105:31 pm
PDX
- PHL
2 stops33h 06m
Frontier
Deal found 4/5![Frontier logo]()
$300
This American Airlines deal was found by Cheapflights users on 4/7. 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 5/65:30 pm
PHL
- GEG
1 stop8h 40m
American Airlines
Wed 5/131:13 pm
GEG
- PHL
1 stop7h 46m
American Airlines
Deal found 4/7![American Airlines logo]()
$285
This CheapOair deal was found by Cheapflights users on 4/6. 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.
Sun 5/178:35 pm
PHL
- PDX
1 stop23h 11m
Frontier
Mon 5/2512:35 pm
PDX
- PHL
1 stop14h 02m
Frontier
Deal found 4/6![Frontier logo]()
$301
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 8, 2026.
Search for one-way flight options from Philadelphia to Washington. Find affordable one-way fares based on user searches. Data last updated April 8, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/3. 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 Kiwi.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 4/3![Frontier logo]()
$82
This Trip.com deal was found by Cheapflights users on 4/3. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/28:41 pm
PHL
- PDX
1 stop16h 39m
Frontier
Deal found 4/3![Frontier logo]()
$83
This Booking.com deal was found by Cheapflights users on 4/6. 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 4/6![Frontier logo]()
$86
This Kiwi.com deal was found by Cheapflights users on 4/4. 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.
Thu 4/308:41 pm
PHL
- PDX
1 stop17h 22m
Frontier
Deal found 4/4![Frontier logo]()
$90
This Trip.com deal was found by Cheapflights users on 4/5. 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.
Thu 5/78:35 pm
PHL
- PDX
1 stop23h 11m
Frontier
Deal found 4/5![Frontier logo]()
$94
This Booking.com deal was found by Cheapflights users on 4/4. 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 Booking.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 4/4![Frontier logo]()
$106
This CheapOair deal was found by Cheapflights users on 4/6. 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 4/6![Frontier logo]()
$112
This Kiwi.com deal was found by Cheapflights users on 4/7. 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
- GEG
2 stops26h 54m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$138
This American Airlines deal was found by Cheapflights users on 4/3. 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 4/305:30 pm
PHL
- GEG
1 stop8h 40m
American Airlines
Deal found 4/3![American Airlines logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 4/4. 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.
Sun 5/35:55 am
PHL
- SEA
2 stops36h 10m
Frontier
Deal found 4/4![Frontier logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 4/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/110:38 pm
PHL
- SEA
2 stops37h 49m
Frontier
Deal found 4/3![Frontier logo]()
$142
This Delta deal was found by Cheapflights users on 4/3. 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.
Thu 4/305:32 pm
PHL
- GEG
2 stops9h 48m
Delta
Deal found 4/3![Delta logo]()
$145
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 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $217 (Trip.com) |
One-way from | $82 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $377 |
Good round-trip deal | $358 or less |
Good one-way deal | $226 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 8, 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 8/5
6:55 pm-11:55 pm
1 stop8h 00m
Spokane
Wed 8/12
5:40 pm-6:05 am
1 stop9h 25m
$279
PhiladelphiaSpokane
PHL - GEG
PHLGEG
Philadelphia
Thu 4/30
5:40 am-9:50 am
1 stop7h 10m
Spokane
Mon 5/4
2:50 pm-12:35 am
1 stop6h 45m
$279
PhiladelphiaSpokane
PHL - GEG
PHLGEG
Philadelphia
Wed 6/3
7:10 am-12:11 pm
1 stop8h 01m
Spokane
Wed 6/10
10:48 pm-9:34 am
1 stop7h 46m
$279
PhiladelphiaSpokane
PHL - GEG
PHLGEG
Philadelphia
Thu 4/30
5:32 pm-12:20 am
2 stops9h 48m
Spokane
Thu 5/7
7:23 pm-5:37 am
1 stop7h 14m
$284
PhiladelphiaSpokane
PHL - GEG
PHLGEG
Philadelphia
Thu 4/30
5:32 pm-12:20 am
2 stops9h 48m
Spokane
Tue 5/5
6:00 am-7:18 pm
2 stops10h 18m
$290
PhiladelphiaSpokane
PHL - GEG
PHLGEG
Philadelphia
Wed 6/3
3:44 pm-11:35 pm
2 stops10h 51m
Spokane
Thu 6/11
5:34 am-7:20 pm
2 stops10h 46m
$290
PhiladelphiaSpokane
PHL - GEG
PHLGEG
Philadelphia
Mon 7/13
2:32 pm-11:07 pm
2 stops11h 35m
Spokane
Wed 7/15
5:05 pm-8:41 am
2 stops12h 36m
$309
PhiladelphiaSeattle
PHL - SEA
PHLSEA
Philadelphia
Sun 7/12
7:08 am-10:04 am
Nonstop5h 56m
Seattle/Tacoma Intl
Thu 7/16
9:30 pm-5:53 am
Nonstop5h 23m
$329
PhiladelphiaSeattle
PHL - SEA
PHLSEA
Philadelphia
Thu 8/27
6:40 pm-12:01 am
1 stop8h 21m
Seattle/Tacoma Intl
Fri 9/4
9:50 pm-6:05 am
Nonstop5h 15m
$339
PhiladelphiaSeattle
PHL - SEA
PHLSEA
Philadelphia
Fri 7/24
6:57 pm-11:58 pm
1 stop8h 01m
Seattle/Tacoma Intl
Tue 8/4
9:30 pm-5:53 am
Nonstop5h 23m
$339
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-PDX
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-PSC
PHL-PDX
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 April 8, 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 8, 2026.
The most flights from PHL to USWA are scheduled on a Tuesday (8 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 April 8, 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.
Entertainment
7.0
Overall
7.9
Crew
8.5
Food
7.0
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Entertainment
7.0
Overall
7.9
Crew
8.5
Food
7.0
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Entertainment
7.0
Overall
7.9
Crew
8.5
Food
7.0
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Entertainment
7.0
Overall
7.9
Crew
8.5
Food
7.0
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Entertainment
7.0
Overall
7.9
Crew
8.5
Food
7.0
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Entertainment
7.0
Overall
7.9
Crew
8.5
Food
7.0
Comfort
7.8
Boarding
8.1
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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Complete your trip
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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 8, 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 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$115 | Average$228 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$130 | Average$289 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$199 | Average$474 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$203 | Average$449 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$229 | Average$425 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$249 | Average$503 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$258 | Average$471 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$277 | Average$407 | FlexibilityNo cancel fee | On-time71% |