$119+ Cheap flights from Pennsylvania 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 7/14. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SEA
Jul 19 — Jul 261
Round-trip
1 adult, Economy
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Cheapest flights from Pennsylvania to WashingtonExplore the most affordable flight options available from Pennsylvania to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 19, 2026.
Explore the most affordable flight options available from Pennsylvania to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 19, 2026.
This Southwest deal was found by Cheapflights users on 6/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1712:50 pm
PIT
- SEA
2 stops13h 05m
Southwest
Mon 9/2111:05 pm
SEA
- PIT
2 stops10h 00m
Southwest
Deal found 6/16![Southwest logo]()
$303
This Southwest deal was found by Cheapflights users on 6/15. 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 8/56:30 pm
PIT
- SEA
1 stop7h 35m
Southwest
Wed 8/1211:00 pm
SEA
- PIT
1 stop10h 35m
Southwest
Deal found 6/15![Southwest logo]()
$306
This Southwest deal was found by Cheapflights users on 6/15. 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.
Fri 9/1812:50 pm
PIT
- SEA
2 stops13h 05m
Southwest
Fri 9/257:25 pm
SEA
- PIT
2 stops11h 40m
Southwest
Deal found 6/15![Southwest logo]()
$307
This American Airlines deal was found by Cheapflights users on 6/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/237:36 pm
PIT
- SEA
1 stop8h 21m
American Airlines
Tue 7/2810:35 pm
SEA
- PIT
1 stop8h 32m
American Airlines
Deal found 6/15![American Airlines logo]()
$308
This JetBlue deal was found by Cheapflights users on 6/14. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1112:58 pm
PIT
- SEA
1 stop12h 51m
JetBlue
Wed 8/1911:44 pm
SEA
- PIT
1 stop9h 19m
JetBlue
Deal found 6/14![JetBlue logo]()
$311
This United Airlines deal was found by Cheapflights users on 6/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/197:00 am
EWR
- PDX
Nonstop5h 50m
United Airlines
Wed 8/2611:17 pm
PDX
- EWR
Nonstop5h 12m
United Airlines
Deal found 6/16![United Airlines logo]()
$312
This American Airlines deal was found by Cheapflights users on 6/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/295:11 pm
PIT
- SEA
1 stop8h 47m
American Airlines
Wed 7/15:10 am
SEA
- PIT
1 stop10h 31m
American Airlines
Deal found 6/15![American Airlines logo]()
$313
This United Airlines deal was found by Cheapflights users on 6/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/217:03 pm
EWR
- PDX
Nonstop6h 00m
United Airlines
Tue 8/252:27 pm
PDX
- EWR
1 stop7h 30m
United Airlines
Deal found 6/17![United Airlines logo]()
$313
This Flysmarter deal was found by Cheapflights users on 6/14. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/65:30 pm
JFK
- SEA
Nonstop6h 12m
JetBlue
Wed 10/2110:15 pm
SEA
- JFK
Nonstop5h 22m
JetBlue
Deal found 6/14![JetBlue logo]()
$314
This American Airlines deal was found by Cheapflights users on 6/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/315:21 am
PIT
- SEA
1 stop9h 29m
American Airlines
Sun 9/612:40 am
SEA
- PIT
1 stop10h 24m
American Airlines
Deal found 6/15![American Airlines logo]()
$314
This United Airlines deal was found by Cheapflights users on 6/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/94:59 pm
EWR
- PDX
1 stop8h 54m
United Airlines
Wed 9/1611:02 pm
PDX
- EWR
1 stop7h 01m
United Airlines
Deal found 6/18![United Airlines logo]()
$314
This Southwest deal was found by Cheapflights users on 6/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/75:30 pm
PIT
- SEA
1 stop10h 15m
Southwest
Fri 7/1011:05 pm
SEA
- PIT
1 stop8h 10m
Southwest
Deal found 6/16![Southwest logo]()
$316
Best flights from Pennsylvania to WashingtonDiscover carefully curated flight deals from Pennsylvania to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 19, 2026.
Discover carefully curated flight deals from Pennsylvania to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 19, 2026.
This Delta deal was found by Cheapflights users on 6/17. 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.
Tue 9/11:23 pm
EWR
- PDX
1 stop11h 21m
Delta
Sat 9/511:55 am
PDX
- EWR
1 stop9h 01m
Delta
Deal found 6/17![Delta logo]()
$319
This Alaska Airlines deal was found by Cheapflights users on 6/14. 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.
Sun 10/257:00 am
EWR
- PDX
Nonstop6h 09m
Alaska Airlines
Sun 11/17:00 am
PDX
- EWR
1 stop8h 59m
Alaska Airlines
Deal found 6/14![Alaska Airlines logo]()
$333
This Southwest deal was found by Cheapflights users on 6/17. 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.
Sat 8/1510:10 am
LGA
- SEA
1 stop9h 50m
Southwest
Tue 8/1811:00 pm
SEA
- LGA
1 stop7h 40m
Southwest
Deal found 6/17![Southwest logo]()
$342
This United Airlines deal was found by Cheapflights users on 6/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2210:45 am
PIT
- SEA
2 stops12h 58m
United Airlines
Mon 8/313:30 pm
SEA
- PIT
1 stop11h 05m
United Airlines
Deal found 6/16![United Airlines logo]()
$352
This JetBlue deal was found by Cheapflights users on 6/16. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/104:59 pm
JFK
- PDX
1 stop8h 32m
JetBlue
Fri 7/1711:27 pm
PDX
- JFK
1 stop7h 32m
JetBlue
Deal found 6/16![JetBlue logo]()
$383
This Delta deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” 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 10/205:00 pm
EWR
- PDX
1 stop7h 53m
Delta
Tue 10/277:14 pm
PDX
- EWR
1 stop7h 50m
Delta
Deal found 6/19![Delta logo]()
$319
This Alaska Airlines deal was found by Cheapflights users on 6/15. 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.
Fri 9/119:03 am
IAD
- SEA
Nonstop5h 36m
Alaska Airlines
Sat 9/193:56 pm
SEA
- IAD
Nonstop5h 03m
Alaska Airlines
Deal found 6/15![Alaska Airlines logo]()
$335
This Southwest deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” 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 9/86:00 am
PHL
- SEA
1 stop10h 20m
Southwest
Tue 9/1511:05 pm
SEA
- PHL
2 stops11h 00m
Southwest
Deal found 6/19![Southwest logo]()
$354
This Delta deal was found by Cheapflights users on 6/18. 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 9/67:05 am
PHL
- SEA
Nonstop5h 56m
Delta
Thu 9/109:35 pm
SEA
- PHL
Nonstop5h 20m
Delta
Deal found 6/18![Delta logo]()
$329
This United Airlines deal was found by Cheapflights users on 6/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/288:30 pm
EWR
- SEA
Nonstop6h 14m
United Airlines
Wed 7/293:23 pm
SEA
- EWR
Nonstop5h 26m
United Airlines
Deal found 6/16![United Airlines logo]()
$368
This Alaska Airlines deal was found by Cheapflights users on 6/14. 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.
Sat 9/124:46 pm
JFK
- SEA
1 stop8h 53m
Alaska Airlines
Sat 9/196:51 pm
SEA
- JFK
1 stop8h 10m
Alaska Airlines
Deal found 6/14![Alaska Airlines logo]()
$337
This Southwest deal was found by Cheapflights users on 6/14. 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 8/134:05 pm
DCA
- SEA
2 stops9h 50m
Southwest
Wed 8/198:55 am
SEA
- DCA
1 stop10h 25m
Southwest
Deal found 6/14![Southwest logo]()
$365
This JetBlue deal was found by Cheapflights users on 6/16. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/205:36 pm
JFK
- SEA
Nonstop6h 28m
JetBlue
Wed 7/2910:19 pm
SEA
- JFK
Nonstop5h 20m
JetBlue
Deal found 6/16![JetBlue logo]()
$402
This United Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” 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 8/55:55 pm
IAD
- SEA
Nonstop5h 51m
United Airlines
Wed 8/1211:04 pm
SEA
- IAD
Nonstop5h 03m
United Airlines
Deal found 6/19![United Airlines logo]()
$371
This Delta deal was found by Cheapflights users on 6/16. 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.
Sat 9/57:05 am
PHL
- SEA
Nonstop5h 56m
Delta
Sun 9/139:50 pm
SEA
- PHL
Nonstop5h 15m
Delta
Deal found 6/16![Delta logo]()
$339
This Southwest deal was found by Cheapflights users on 6/17. 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.
Sat 7/183:30 pm
PIT
- SEA
2 stops11h 45m
Southwest
Tue 7/217:30 pm
SEA
- PIT
2 stops13h 35m
Southwest
Deal found 6/17![Southwest logo]()
$366
This Alaska Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” 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 10/207:22 am
JFK
- PDX
1 stop9h 05m
Alaska Airlines
Tue 10/277:37 pm
PDX
- JFK
1 stop8h 28m
Alaska Airlines
Deal found 6/19![Alaska Airlines logo]()
$377
This Delta deal was found by Cheapflights users on 6/14. 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 9/144:45 pm
DCA
- SEA
Nonstop5h 40m
Delta
Fri 9/187:20 am
SEA
- DCA
Nonstop5h 12m
Delta
Deal found 6/14![Delta logo]()
$345
This JetBlue deal was found by Cheapflights users on 6/16. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/31:48 pm
DCA
- SEA
1 stop12h 01m
JetBlue
Tue 7/711:44 pm
SEA
- DCA
1 stop9h 17m
JetBlue
Deal found 6/16![JetBlue logo]()
$428
This United Airlines deal was found by Cheapflights users on 6/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/225:55 pm
IAD
- SEA
Nonstop5h 51m
United Airlines
Wed 7/2911:20 pm
SEA
- IAD
Nonstop5h 02m
United Airlines
Deal found 6/15![United Airlines logo]()
$400
This Southwest deal was found by Cheapflights users on 6/17. 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.
Sat 7/46:00 am
LGA
- SEA
1 stop13h 40m
Southwest
Tue 7/145:00 am
SEA
- LGA
1 stop8h 15m
Southwest
Deal found 6/17![Southwest logo]()
$367
This Delta deal was found by Cheapflights users on 6/15. 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.
Tue 8/187:15 am
EWR
- PDX
1 stop7h 54m
Delta
Mon 8/2411:20 pm
PDX
- EWR
1 stop6h 23m
Delta
Deal found 6/15![Delta logo]()
$348
This Alaska Airlines deal was found by Cheapflights users on 6/14. 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 10/14:35 pm
EWR
- PDX
Nonstop5h 55m
Alaska Airlines
Tue 10/610:30 am
PDX
- EWR
1 stop27h 49m
Alaska Airlines
Deal found 6/14![Alaska Airlines logo]()
$385
This JetBlue deal was found by Cheapflights users on 6/18. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/115:38 pm
JFK
- SEA
Nonstop6h 26m
JetBlue
Thu 9/310:19 pm
SEA
- JFK
Nonstop5h 20m
JetBlue
Deal found 6/18![JetBlue logo]()
$431
This United Airlines deal was found by Cheapflights users on 6/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/34:51 pm
PIT
- SEA
1 stop7h 24m
United Airlines
Thu 10/87:00 am
SEA
- PIT
1 stop6h 57m
United Airlines
Deal found 6/18![United Airlines logo]()
$402
This Southwest deal was found by Cheapflights users on 6/14. 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.
Wed 8/53:00 pm
PHL
- SEA
2 stops11h 25m
Southwest
Tue 8/116:40 am
SEA
- PHL
2 stops11h 15m
Southwest
Deal found 6/14![Southwest logo]()
$375
This Delta deal was found by Cheapflights users on 6/14. 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.
Sat 10/246:55 pm
EWR
- PDX
1 stop7h 56m
Delta
Sun 11/17:14 pm
PDX
- EWR
1 stop7h 50m
Delta
Deal found 6/14![Delta logo]()
$348
This Alaska Airlines deal was found by Cheapflights users on 6/18. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:23 pm
PIT
- SEA
Nonstop5h 11m
Alaska Airlines
Mon 8/319:43 pm
SEA
- PIT
Nonstop4h 41m
Alaska Airlines
Deal found 6/18![Alaska Airlines logo]()
$387
This United Airlines deal was found by Cheapflights users on 6/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/84:11 pm
PIT
- SEA
1 stop9h 34m
United Airlines
Tue 9/157:00 am
SEA
- PIT
2 stops12h 30m
United Airlines
Deal found 6/17![United Airlines logo]()
$407
This Southwest deal was found by Cheapflights users on 6/17. 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.
Fri 8/214:10 pm
PIT
- SEA
2 stops9h 45m
Southwest
Sun 8/305:20 am
SEA
- PIT
2 stops9h 20m
Southwest
Deal found 6/17![Southwest logo]()
$376
Last-minute flights from Pennsylvania to WashingtonDiscover last-minute flight deals from Pennsylvania to Washington. Data last updated June 19, 2026 and is based on user searches.
Discover last-minute flight deals from Pennsylvania to Washington. Data last updated June 19, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 6/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/295:11 pm
PIT
- SEA
1 stop8h 47m
American Airlines
Wed 7/15:10 am
SEA
- PIT
1 stop10h 31m
American Airlines
Deal found 6/15![American Airlines logo]()
$313
This CheapOair deal was found by Cheapflights users on 6/15. 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.
Wed 7/19:55 am
IAD
- SEA
1 stop27h 40m
Frontier
Mon 7/68:53 pm
SEA
- IAD
1 stop8h 27m
Frontier
Deal found 6/15![Frontier logo]()
$322
This United Airlines deal was found by Cheapflights users on 6/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/116:43 pm
EWR
- PDX
Nonstop6h 03m
United Airlines
Tue 7/2111:40 pm
PDX
- EWR
1 stop7h 50m
United Airlines
Deal found 6/18![United Airlines logo]()
$324
This United Airlines deal was found by Cheapflights users on 6/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/136:45 pm
EWR
- PDX
Nonstop6h 03m
United Airlines
Wed 7/1510:52 pm
PDX
- EWR
Nonstop5h 14m
United Airlines
Deal found 6/15![United Airlines logo]()
$322
This Alaska Airlines deal was found by Cheapflights users on 6/16. 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.
Tue 7/146:30 am
EWR
- PDX
Nonstop6h 03m
Alaska Airlines
Fri 7/249:31 pm
PDX
- EWR
Nonstop5h 28m
Alaska Airlines
Deal found 6/16![Alaska Airlines logo]()
$318
This Delta deal was found by Cheapflights users on 6/15. 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.
Tue 7/147:00 am
IAD
- SEA
Nonstop5h 45m
Delta
Fri 7/244:05 pm
SEA
- IAD
Nonstop5h 03m
Delta
Deal found 6/15![Delta logo]()
$326
This United Airlines deal was found by Cheapflights users on 6/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/176:43 pm
EWR
- PDX
Nonstop6h 03m
United Airlines
Tue 7/2110:40 pm
PDX
- EWR
1 stop8h 50m
United Airlines
Deal found 6/17![United Airlines logo]()
$328
This United Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” 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 7/206:30 am
EWR
- PDX
Nonstop5h 55m
United Airlines
Mon 7/2710:40 pm
PDX
- EWR
1 stop7h 32m
United Airlines
Deal found 6/19![United Airlines logo]()
$327
This Kiwi.com deal was found by Cheapflights users on 6/15. 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.
Tue 7/219:50 am
IAD
- SEA
1 stop27h 49m
Frontier
Wed 7/2911:54 am
SEA
- IAD
2 stops17h 26m
Frontier
Deal found 6/15![Frontier logo]()
$324
This Kiwi.com deal was found by Cheapflights users on 6/15. 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.
Tue 7/219:50 am
IAD
- SEA
2 stops12h 08m
Frontier
Wed 8/128:13 pm
SEA
- IAD
1 stop9h 07m
Frontier
Deal found 6/15![Frontier logo]()
$325
This United Airlines deal was found by Cheapflights users on 6/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/276:30 am
EWR
- PDX
Nonstop5h 55m
United Airlines
Tue 7/2810:40 pm
PDX
- EWR
1 stop8h 50m
United Airlines
Deal found 6/15![United Airlines logo]()
$323
This American Airlines deal was found by Cheapflights users on 6/16. 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.
Tue 7/286:30 am
JFK
- SEA
1 stop11h 01m
American Airlines
Tue 8/49:35 pm
SEA
- JFK
1 stop9h 55m
American Airlines
Deal found 6/16![American Airlines logo]()
$328
One-way flights from Pennsylvania to WashingtonSearch for one-way flight options from Pennsylvania to Washington. Find affordable one-way fares based on user searches. Data last updated June 19, 2026.
Search for one-way flight options from Pennsylvania to Washington. Find affordable one-way fares based on user searches. Data last updated June 19, 2026.
This American Airlines deal was found by Cheapflights users on 6/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/145:05 pm
PIT
- SEA
1 stop8h 51m
American Airlines
Deal found 6/18![American Airlines logo]()
$119
This Southwest deal was found by Cheapflights users on 6/17. 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 8/191:25 pm
PIT
- SEA
2 stops9h 50m
Southwest
Deal found 6/17![Southwest logo]()
$124
This Southwest deal was found by Cheapflights users on 6/15. 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 8/121:25 pm
PIT
- SEA
2 stops9h 50m
Southwest
Deal found 6/15![Southwest logo]()
$138
This JetBlue deal was found by Cheapflights users on 6/17. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/121:20 pm
PIT
- SEA
1 stop12h 18m
JetBlue
Deal found 6/17![JetBlue logo]()
$142
This JetBlue deal was found by Cheapflights users on 6/17. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1812:58 pm
PIT
- SEA
1 stop12h 51m
JetBlue
Deal found 6/17![JetBlue logo]()
$143
This JetBlue deal was found by Cheapflights users on 6/15. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1112:58 pm
PIT
- SEA
1 stop12h 51m
JetBlue
Deal found 6/15![JetBlue logo]()
$148
This American Airlines deal was found by Cheapflights users on 6/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/265:37 am
PIT
- SEA
1 stop9h 09m
American Airlines
Deal found 6/18![American Airlines logo]()
$149
This United Airlines deal was found by Cheapflights users on 6/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/317:00 am
EWR
- PDX
Nonstop5h 50m
United Airlines
Deal found 6/16![United Airlines logo]()
$150
This Southwest deal was found by Cheapflights users on 6/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/314:10 pm
PIT
- SEA
2 stops9h 45m
Southwest
Deal found 6/16![Southwest logo]()
$152
This United Airlines deal was found by Cheapflights users on 6/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/16:10 am
PIT
- SEA
1 stop9h 02m
United Airlines
Deal found 6/18![United Airlines logo]()
$153
This Southwest deal was found by Cheapflights users on 6/15. 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.
Fri 8/1412:50 pm
PIT
- SEA
2 stops13h 05m
Southwest
Deal found 6/15![Southwest logo]()
$154
This United Airlines deal was found by Cheapflights users on 6/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/146:30 am
EWR
- PDX
Nonstop5h 55m
United Airlines
Deal found 6/18![United Airlines logo]()
$154
Find flight deals from Pennsylvania to Washington
Keep the following information in mind while searching for Pennsylvania to Washington flight deals. Data was last updated June 19, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $303 (Southwest) |
One-way from | $119 (American Airlines) |
Popular in | December |
Cheapest in | October |
Average price | $468 |
Good round-trip deal | $354 or less |
Good one-way deal | $200 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Pennsylvania 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 19, 2026.
Use the filters below to find and compare flights from Pennsylvania to Washington that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
NewarkPortland
EWR - PDX
EWRPDX
Newark
Tue 9/1
1:23 pm-9:44 pm
1 stop11h 21m
Portland
Sat 9/5
11:55 am-11:56 pm
1 stop9h 01m
$319
NewarkPortland
EWR - PDX
EWRPDX
Newark
Tue 10/20
5:00 pm-9:53 pm
1 stop7h 53m
Portland
Tue 10/27
7:14 pm-6:04 am
1 stop7h 50m
$319
PhiladelphiaSeattle
PHL - SEA
PHLSEA
Philadelphia
Sun 9/6
7:05 am-10:01 am
Nonstop5h 56m
Seattle/Tacoma Intl
Thu 9/10
9:35 pm-5:55 am
Nonstop5h 20m
$329
NewarkPortland
EWR - PDX
EWRPDX
Newark
Sun 10/25
7:00 am-10:09 am
Nonstop6h 09m
Portland
Sun 11/1
7:00 am-6:59 pm
1 stop8h 59m
$333
Washington, D.C.Seattle
IAD - SEA
IADSEA
Washington, D.C. Dulles Intl
Fri 9/11
9:03 am-11:39 am
Nonstop5h 36m
Seattle/Tacoma Intl
Sat 9/19
3:56 pm-11:59 pm
Nonstop5h 03m
$335
New YorkSeattle
JFK - SEA
JFKSEA
New York John F Kennedy Intl
Sat 9/12
4:46 pm-10:39 pm
1 stop8h 53m
Seattle/Tacoma Intl
Sat 9/19
6:51 pm-6:01 am
1 stop8h 10m
$337
PhiladelphiaSeattle
PHL - SEA
PHLSEA
Philadelphia
Sat 9/5
7:05 am-10:01 am
Nonstop5h 56m
Seattle/Tacoma Intl
Sun 9/13
9:50 pm-6:05 am
Nonstop5h 15m
$339
New YorkSeattle
LGA - SEA
LGASEA
New York LaGuardia
Sat 8/15
10:10 am-5:00 pm
1 stop9h 50m
Seattle/Tacoma Intl
Tue 8/18
11:00 pm-9:40 am
1 stop7h 40m
$342
Washington, D.C.Seattle
DCA - SEA
DCASEA
Washington, D.C. Reagan-National
Mon 9/14
4:45 pm-7:25 pm
Nonstop5h 40m
Seattle/Tacoma Intl
Fri 9/18
7:20 am-3:32 pm
Nonstop5h 12m
$345
NewarkPortland
EWR - PDX
EWRPDX
Newark
Tue 8/18
7:15 am-12:09 pm
1 stop7h 54m
Portland
Mon 8/24
11:20 pm-8:43 am
1 stop6h 23m
$348
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Pennsylvania to Washington
Have a flexible travel schedule? Discover the best time to fly to Washington from Pennsylvania with our price prediction graph.
PIT-SEA
EWR-PDX
IAD-SEA
JFK-SEA
PHL-SEA
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 Pennsylvania to Washington
USPA-USWA
PIT-SEA
EWR-PDX
IAD-SEA
JFK-SEA
What is the cheapest month to book a flight from Pennsylvania to State of Washington?
Currently, November is the cheapest month in which you can book a flight from Pennsylvania to State of Washington (average of $98). Flying from Pennsylvania to State of Washington in April is currently the most expensive (average of $639). 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 PA to WA?
Find hourly flight availability from Pennsylvania 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 19, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Pennsylvania to State of Washington as you normally would.
Weekly flight availability from Pennsylvania to State of Washington
Explore weekly flight availability from Pennsylvania 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 19, 2026.
The most flights from USPA to USWA are scheduled on a Friday (9 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (5 on average).
How much does it cost to fly round-trip from Pennsylvania to State of Washington?
How far ahead should I book a flight from Pennsylvania to State of Washington?
Booking 66 days in advance of your planned departure date is, on average, the best time to get cheap flights from Pennsylvania to State of Washington. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
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 19, 2026.
Read reviews from past customers who have flown Alaska Airlines,Southwest, andDelta from Pennsylvania to Washington. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.0
Comfort
7.8
Boarding
8.1
Crew
8.5
Food
7.1
Overall
7.9
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Entertainment
7.0
Comfort
7.8
Boarding
8.1
Crew
8.5
Food
7.1
Overall
7.9
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Entertainment
7.0
Comfort
7.8
Boarding
8.1
Crew
8.5
Food
7.1
Overall
7.9
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Entertainment
7.0
Comfort
7.8
Boarding
8.1
Crew
8.5
Food
7.1
Overall
7.9
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Entertainment
7.0
Comfort
7.8
Boarding
8.1
Crew
8.5
Food
7.1
Overall
7.9
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Entertainment
7.0
Comfort
7.8
Boarding
8.1
Crew
8.5
Food
7.1
Overall
7.9
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Related info for your journey
Find useful and relevant information for your journey from Pennsylvania 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 Pennsylvania to Washington
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Complete your trip
Complete your trip to Washington by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Pennsylvania to Washington by cabin class
Find flights from Pennsylvania to Washington, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Pennsylvania and Washington flights
Browse other Pennsylvania and Washington flight options. Last updated on June 19, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Washington
Find the right flight back to Pennsylvania after your stay in Washington
Pennsylvania to Washington flights
Consider these flights traveling from Pennsylvania to Washington.
Top 7 airlines flying from Pennsylvania to Washington
Discover the top 7 airlines that operate flights from Pennsylvania 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 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$134 | Average$298 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$148 | Average$394 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$159 | Average$414 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$176 | Average$443 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$178 | Average$488 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$180 | Average$518 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$231 | Average$466 | FlexibilityNo cancel fee | On-time69% |