$114+ Cheap flights from Seattle (SEA) to Maryland
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 12/2. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BWI
Jul 24 — Jul 311
Round-trip
1 adult, Economy
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Cheapest flights from Seattle to MarylandExplore the most affordable flight options available from Seattle to Maryland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 24, 2026.
Explore the most affordable flight options available from Seattle to Maryland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 24, 2026.
This United Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1911:00 pm
SEA
- IAD
1 stop7h 28m
United Airlines
Sun 9/275:45 pm
IAD
- SEA
Nonstop5h 52m
United Airlines
Deal found 6/21![United Airlines logo]()
$287
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.
Tue 9/18:10 am
SEA
- IAD
Nonstop5h 06m
United Airlines
Fri 9/181:10 pm
IAD
- SEA
1 stop9h 05m
United Airlines
Deal found 6/19![United Airlines logo]()
$288
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 8/196:15 pm
SEA
- IAD
1 stop8h 10m
United Airlines
Wed 8/266:00 pm
IAD
- SEA
Nonstop5h 45m
United Airlines
Deal found 6/19![United Airlines logo]()
$291
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/168:53 pm
SEA
- IAD
1 stop32h 11m
Frontier
Wed 8/269:20 am
IAD
- SEA
1 stop28h 19m
Frontier
Deal found 6/19![Frontier logo]()
$293
This American Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 7/235:10 am
SEA
- DCA
1 stop8h 03m
American Airlines
Tue 7/285:24 pm
DCA
- SEA
1 stop8h 32m
American Airlines
Deal found 6/21![American Airlines logo]()
$295
This Alaska Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 9/23:56 pm
SEA
- IAD
Nonstop5h 03m
Alaska Airlines
Sun 9/67:00 am
IAD
- SEA
Nonstop5h 37m
Alaska Airlines
Deal found 6/22![Alaska Airlines logo]()
$295
This United Airlines deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” 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 8/216:10 pm
SEA
- IAD
1 stop8h 15m
United Airlines
Sun 8/236:00 pm
IAD
- SEA
Nonstop5h 54m
United Airlines
Deal found 6/23![United Airlines logo]()
$296
This Trip.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 8/136:21 am
SEA
- IAD
1 stop9h 24m
Alaska Airlines
Wed 8/197:00 am
IAD
- SEA
Nonstop5h 37m
Alaska Airlines
Deal found 6/20![Alaska Airlines logo]()
$297
This Expedia deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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.
Tue 7/2812:35 pm
SEA
- DCA
1 stop30h 24m
Frontier
Wed 8/57:00 am
DCA
- SEA
1 stop29h 04m
Frontier
Deal found 6/20![Frontier logo]()
$298
This United Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/278:10 am
SEA
- IAD
Nonstop5h 06m
United Airlines
Sat 8/2912:50 pm
IAD
- SEA
1 stop7h 52m
United Airlines
Deal found 6/20![United Airlines logo]()
$298
This Kissandfly.com deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/67:20 am
SEA
- DCA
Nonstop5h 01m
Frontier
Fri 8/147:00 am
DCA
- SEA
1 stop9h 17m
Frontier
Deal found 6/23![Frontier logo]()
$300
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.
Thu 8/67:20 am
SEA
- DCA
Nonstop5h 01m
Delta
Wed 8/124:35 pm
DCA
- SEA
Nonstop6h 06m
Delta
Deal found 6/19![Delta logo]()
$301
Best flights from Seattle to MarylandDiscover carefully curated flight deals from Seattle to Maryland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 24, 2026.
Discover carefully curated flight deals from Seattle to Maryland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 24, 2026.
This United Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/311:04 pm
SEA
- IAD
Nonstop5h 03m
United Airlines
Tue 9/82:43 pm
IAD
- SEA
1 stop9h 48m
United Airlines
Deal found 6/20![United Airlines logo]()
$287
This Alaska Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 9/179:35 pm
SEA
- IAD
Nonstop5h 05m
Alaska Airlines
Mon 9/217:00 am
IAD
- SEA
Nonstop5h 37m
Alaska Airlines
Deal found 6/20![Alaska Airlines logo]()
$295
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.
Thu 8/67:20 am
SEA
- DCA
Nonstop5h 01m
Delta
Wed 8/124:35 pm
DCA
- SEA
Nonstop6h 06m
Delta
Deal found 6/19![Delta logo]()
$305
This Southwest deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 8/1311:00 pm
SEA
- DCA
1 stop10h 20m
Southwest
Wed 8/1910:45 am
DCA
- SEA
2 stops10h 25m
Southwest
Deal found 6/20![Southwest logo]()
$326
This JetBlue deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 7/3111:44 pm
SEA
- DCA
1 stop9h 17m
JetBlue
Fri 9/112:30 pm
DCA
- SEA
1 stop11h 08m
JetBlue
Deal found 6/22![JetBlue logo]()
$431
This Alaska Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 8/278:49 pm
SEA
- IAD
1 stop18h 25m
Alaska Airlines
Mon 8/317:00 am
IAD
- SEA
Nonstop5h 37m
Alaska Airlines
Deal found 6/20![Alaska Airlines logo]()
$311
This United Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/611:20 pm
SEA
- IAD
Nonstop5h 02m
United Airlines
Sat 8/226:00 pm
IAD
- SEA
Nonstop5h 45m
United Airlines
Deal found 6/20![United Airlines logo]()
$321
This Southwest deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” 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 9/25:20 am
SEA
- DCA
1 stop7h 25m
Southwest
Wed 9/26:40 pm
DCA
- SEA
2 stops16h 55m
Southwest
Deal found 6/23![Southwest logo]()
$326
This Delta deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/29:30 pm
SEA
- PHL
Nonstop5h 20m
Delta
Sat 9/53:55 pm
PHL
- SEA
1 stop11h 02m
Delta
Deal found 6/20![Delta logo]()
$339
This Alaska Airlines deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” 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 8/198:49 pm
SEA
- IAD
1 stop18h 25m
Alaska Airlines
Tue 8/255:47 pm
IAD
- SEA
Nonstop5h 47m
Alaska Airlines
Deal found 6/23![Alaska Airlines logo]()
$325
This Delta deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1811:59 am
SEA
- PHL
1 stop8h 57m
Delta
Sun 9/207:05 am
PHL
- SEA
Nonstop5h 51m
Delta
Deal found 6/23![Delta logo]()
$339
This Southwest deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 8/611:00 pm
SEA
- DCA
1 stop10h 20m
Southwest
Sat 8/156:05 am
DCA
- SEA
2 stops11h 15m
Southwest
Deal found 6/22![Southwest logo]()
$346
This United Airlines deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” 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 9/158:40 am
SEA
- PHL
1 stop7h 45m
United Airlines
Tue 9/223:05 pm
PHL
- SEA
2 stops10h 40m
United Airlines
Deal found 6/23![United Airlines logo]()
$347
This American Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 8/108:10 am
SEA
- SBY
1 stop11h 48m
American Airlines
Sun 8/166:41 am
SBY
- SEA
1 stop19h 15m
American Airlines
Deal found 6/20![American Airlines logo]()
$774
This Alaska Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 9/89:27 pm
SEA
- PHL
Nonstop5h 13m
Alaska Airlines
Sun 9/274:48 pm
PHL
- SEA
1 stop8h 51m
Alaska Airlines
Deal found 6/22![Alaska Airlines logo]()
$339
This Delta deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/46:00 am
SEA
- PHL
1 stop8h 34m
Delta
Wed 9/96:59 pm
PHL
- SEA
1 stop7h 56m
Delta
Deal found 6/20![Delta logo]()
$349
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.
Thu 8/1310:45 am
SEA
- PHL
1 stop7h 20m
Southwest
Sat 8/226:30 am
PHL
- SEA
2 stops10h 55m
Southwest
Deal found 6/19![Southwest logo]()
$354
This United Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 7/3111:20 pm
SEA
- IAD
Nonstop5h 02m
United Airlines
Sun 8/95:55 pm
IAD
- SEA
Nonstop5h 51m
United Airlines
Deal found 6/21![United Airlines logo]()
$358
This Delta deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” 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 9/207:59 pm
SEA
- PHL
1 stop7h 06m
Delta
Sun 9/276:55 pm
PHL
- SEA
1 stop8h 04m
Delta
Deal found 6/23![Delta logo]()
$349
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 9/229:27 pm
SEA
- PHL
Nonstop5h 13m
Alaska Airlines
Wed 9/234:48 pm
PHL
- SEA
1 stop8h 51m
Alaska Airlines
Deal found 6/19![Alaska Airlines logo]()
$369
This Southwest deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” 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 8/611:00 pm
SEA
- DCA
1 stop13h 50m
Southwest
Fri 8/144:35 pm
DCA
- SEA
2 stops9h 20m
Southwest
Deal found 6/23![Southwest logo]()
$371
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.
Fri 8/216:10 pm
SEA
- IAD
1 stop8h 15m
United Airlines
Tue 8/257:00 am
IAD
- SEA
1 stop11h 39m
United Airlines
Deal found 6/19![United Airlines logo]()
$380
This Delta deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/307:20 am
SEA
- DCA
Nonstop5h 12m
Delta
Sat 10/34:45 pm
DCA
- SEA
Nonstop5h 40m
Delta
Deal found 6/20![Delta logo]()
$356
This Alaska Airlines deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” 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 9/298:41 am
SEA
- DCA
1 stop9h 19m
Alaska Airlines
Tue 10/65:00 pm
DCA
- SEA
Nonstop5h 55m
Alaska Airlines
Deal found 6/23![Alaska Airlines logo]()
$376
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.
Fri 9/2510:30 pm
SEA
- BWI
Nonstop5h 00m
Southwest
Mon 9/2812:20 pm
BWI
- SEA
Nonstop5h 40m
Southwest
Deal found 6/19![Southwest logo]()
$377
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.
Fri 8/216:10 pm
SEA
- IAD
1 stop8h 15m
United Airlines
Mon 8/243:02 pm
IAD
- SEA
1 stop9h 36m
United Airlines
Deal found 6/19![United Airlines logo]()
$385
This Delta deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 8/129:30 pm
SEA
- PHL
Nonstop5h 20m
Delta
Wed 8/195:45 am
PHL
- SEA
1 stop10h 15m
Delta
Deal found 6/21![Delta logo]()
$369
This Alaska Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 9/2210:23 pm
SEA
- BWI
Nonstop5h 07m
Alaska Airlines
Wed 9/237:15 pm
BWI
- SEA
Nonstop5h 42m
Alaska Airlines
Deal found 6/20![Alaska Airlines logo]()
$377
This Southwest deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” 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 8/138:20 pm
SEA
- PHL
2 stops11h 50m
Southwest
Thu 8/206:05 pm
PHL
- SEA
1 stop8h 50m
Southwest
Deal found 6/24![Southwest logo]()
$378
This United Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/611:20 pm
SEA
- IAD
Nonstop5h 02m
United Airlines
Sat 8/156:00 pm
IAD
- SEA
Nonstop5h 45m
United Airlines
Deal found 6/21![United Airlines logo]()
$405
Last-minute flights from Seattle to MarylandDiscover last-minute flight deals from Seattle to Maryland. Data last updated June 24, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Maryland. Data last updated June 24, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 7/811:44 pm
SEA
- DCA
1 stop9h 17m
Multiple Airlines
Tue 7/146:00 pm
DCA
- SEA
1 stop20h 20m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$307
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.
Wed 7/154:05 pm
SEA
- IAD
Nonstop5h 03m
Delta
Fri 7/177:00 am
IAD
- SEA
Nonstop5h 45m
Delta
Deal found 6/19![Delta logo]()
$295
This CheapOair deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” 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 7/177:06 pm
SEA
- DCA
1 stop23h 53m
Frontier
Tue 7/217:00 am
DCA
- SEA
1 stop29h 17m
Frontier
Deal found 6/24![Frontier logo]()
$308
This Kiwi.com deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” 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 7/2111:54 am
SEA
- IAD
2 stops17h 26m
Frontier
Tue 8/258:59 am
IAD
- SEA
1 stop28h 40m
Frontier
Deal found 6/23![Frontier logo]()
$305
This WAYA deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/218:13 pm
SEA
- IAD
1 stop9h 07m
Multiple Airlines
Tue 8/255:47 pm
IAD
- SEA
Nonstop5h 47m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$308
This Booking.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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.
Tue 7/217:06 pm
SEA
- DCA
1 stop14h 45m
Frontier
Tue 7/286:00 pm
DCA
- SEA
1 stop20h 20m
Frontier
Deal found 6/21![Frontier logo]()
$312
This American Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 7/235:10 am
SEA
- DCA
1 stop8h 03m
American Airlines
Tue 7/285:24 pm
DCA
- SEA
1 stop8h 32m
American Airlines
Deal found 6/21![American Airlines logo]()
$295
This American Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 7/235:10 am
SEA
- DCA
1 stop8h 03m
American Airlines
Tue 8/45:24 pm
DCA
- SEA
1 stop8h 32m
American Airlines
Deal found 6/21![American Airlines logo]()
$315
This Kiwi.com deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” 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 7/247:06 pm
SEA
- DCA
1 stop14h 45m
Frontier
Sat 7/256:00 pm
DCA
- SEA
1 stop18h 17m
Frontier
Deal found 6/23![Frontier logo]()
$313
This Expedia deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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.
Tue 7/2812:35 pm
SEA
- DCA
1 stop30h 24m
Frontier
Wed 8/57:00 am
DCA
- SEA
1 stop29h 04m
Frontier
Deal found 6/20![Frontier logo]()
$298
This Expedia deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 7/307:06 pm
SEA
- DCA
1 stop14h 45m
Multiple Airlines
Tue 9/810:59 am
DCA
- SEA
1 stop10h 53m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$311
This Expedia deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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.
Fri 7/3112:35 pm
SEA
- DCA
1 stop21h 16m
Frontier
Sat 8/87:00 am
DCA
- SEA
1 stop29h 04m
Frontier
Deal found 6/21![Frontier logo]()
$306
One-way flights from Seattle to MarylandSearch for one-way flight options from Seattle to Maryland. Find affordable one-way fares based on user searches. Data last updated June 24, 2026.
Search for one-way flight options from Seattle to Maryland. Find affordable one-way fares based on user searches. Data last updated June 24, 2026.
This American Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 12/21:47 pm
SEA
- BWI
1 stop7h 36m
American Airlines
Deal found 6/21![American Airlines logo]()
$114
This American Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/295:10 am
SEA
- BWI
1 stop7h 03m
American Airlines
Deal found 6/21![American Airlines logo]()
$149
This Kissandfly.com deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/267:06 pm
SEA
- DCA
1 stop23h 53m
Frontier
Deal found 6/22![Frontier logo]()
$149
This Kiwi.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 7/218:13 pm
SEA
- IAD
1 stop9h 07m
Frontier
Deal found 6/21![Frontier logo]()
$149
This United Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 9/1411:00 pm
SEA
- BWI
1 stop8h 39m
United Airlines
Deal found 6/22![United Airlines logo]()
$150
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 9/27:35 pm
SEA
- BWI
2 stops13h 10m
United Airlines
Deal found 6/19![United Airlines logo]()
$155
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3111:16 pm
SEA
- DCA
1 stop8h 43m
American Airlines
Deal found 6/19![American Airlines logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 8/188:53 pm
SEA
- IAD
1 stop32h 11m
Frontier
Deal found 6/22![Frontier logo]()
$157
This United Airlines deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” 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 8/1711:59 pm
SEA
- DCA
1 stop8h 55m
United Airlines
Deal found 6/23![United Airlines logo]()
$158
This United Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 7/1511:11 pm
SEA
- IAD
1 stop7h 13m
United Airlines
Deal found 6/22![United Airlines logo]()
$158
This American Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 8/215:10 am
SEA
- BWI
1 stop7h 04m
American Airlines
Deal found 6/22![American Airlines logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” 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 8/178:53 pm
SEA
- IAD
1 stop32h 11m
Frontier
Deal found 6/23![Frontier logo]()
$159
Find flight deals from Seattle to Maryland
Keep the following information in mind while searching for Seattle to Maryland flight deals. Data was last updated June 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $287 (United Airlines) |
One-way from | $114 (American Airlines) |
Popular in | June |
Cheapest in | January |
Average price | $545 |
Good round-trip deal | $382 or less |
Good one-way deal | $253 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Maryland 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 24, 2026.
Use the filters below to find and compare flights from Seattle to Maryland that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleWashington, D.C.
SEA - IAD
SEAIAD
Seattle/Tacoma Intl
Thu 9/3
11:04 pm-7:07 am
Nonstop5h 03m
Washington, D.C. Dulles Intl
Tue 9/8
2:43 pm-9:31 pm
1 stop9h 48m
$287
SeattleWashington, D.C.
SEA - IAD
SEAIAD
Seattle/Tacoma Intl
Thu 9/17
9:35 pm-5:40 am
Nonstop5h 05m
Washington, D.C. Dulles Intl
Mon 9/21
7:00 am-9:37 am
Nonstop5h 37m
$295
SeattleWashington, D.C.
SEA - DCA
SEADCA
Seattle/Tacoma Intl
Thu 8/6
7:20 am-3:21 pm
Nonstop5h 01m
Washington, D.C. Reagan-National
Wed 8/12
4:35 pm-7:41 pm
Nonstop6h 06m
$305
SeattleWashington, D.C.
SEA - IAD
SEAIAD
Seattle/Tacoma Intl
Thu 8/27
8:49 pm-6:14 pm
1 stop18h 25m
Washington, D.C. Dulles Intl
Mon 8/31
7:00 am-9:37 am
Nonstop5h 37m
$311
SeattleWashington, D.C.
SEA - IAD
SEAIAD
Seattle/Tacoma Intl
Thu 8/6
11:20 pm-7:22 am
Nonstop5h 02m
Washington, D.C. Dulles Intl
Sat 8/22
6:00 pm-8:45 pm
Nonstop5h 45m
$321
SeattleWashington, D.C.
SEA - IAD
SEAIAD
Seattle/Tacoma Intl
Wed 8/19
8:49 pm-6:14 pm
1 stop18h 25m
Washington, D.C. Dulles Intl
Tue 8/25
5:47 pm-8:34 pm
Nonstop5h 47m
$325
SeattleWashington, D.C.
SEA - DCA
SEADCA
Seattle/Tacoma Intl
Thu 8/13
11:00 pm-12:20 pm
1 stop10h 20m
Washington, D.C. Reagan-National
Wed 8/19
10:45 am-6:10 pm
2 stops10h 25m
$326
SeattleWashington, D.C.
SEA - DCA
SEADCA
Seattle/Tacoma Intl
Wed 9/2
5:20 am-3:45 pm
1 stop7h 25m
Washington, D.C. Reagan-National
Wed 9/2
6:40 pm-8:35 am
2 stops16h 55m
$326
SeattlePhiladelphia
SEA - PHL
SEAPHL
Seattle/Tacoma Intl
Wed 9/2
9:30 pm-5:50 am
Nonstop5h 20m
Philadelphia
Sat 9/5
3:55 pm-11:57 pm
1 stop11h 02m
$339
SeattlePhiladelphia
SEA - PHL
SEAPHL
Seattle/Tacoma Intl
Fri 9/18
11:59 am-11:56 pm
1 stop8h 57m
Philadelphia
Sun 9/20
7:05 am-9:56 am
Nonstop5h 51m
$339
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Seattle to Maryland
Have a flexible travel schedule? Discover the best time to fly to Maryland from Seattle with our price prediction graph.
SEA-IAD
SEA-DCA
SEA-BWI
SEA-PHL
SEA-SBY
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 Seattle to Maryland
SEA-USMD
SEA-IAD
SEA-DCA
SEA-BWI
SEA-PHL
What is the cheapest month to book a flight from Seattle to Maryland?
Currently, December is the cheapest month in which you can book a flight from Seattle to Maryland (average of $89). Flying from Seattle to Maryland in February is currently the most expensive (average of $178). 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 SEA to MD?
Find hourly flight availability from Seattle to Maryland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 24, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Maryland as you normally would.
Weekly flight availability from Seattle to Maryland
Explore weekly flight availability from Seattle to Maryland. 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 24, 2026.
The most flights from SEA to USMD are scheduled on a Tuesday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).
How much does it cost to fly round-trip from Seattle to Maryland?
How far ahead should I book a flight from Seattle to Maryland?
To ensure you get the cheapest price possible for a flight from Seattle to Maryland, you should look to book at least 83 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Reviews of airlines servicing Maryland
Get insights into the airlines that provide service to Maryland. 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 Maryland. Reviews last updated June 24, 2026.
Read reviews from past customers who have flown Alaska Airlines,Southwest, andDelta from Seattle to Maryland. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.0
Overall
7.9
Comfort
7.8
Crew
8.5
Boarding
8.1
Food
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Entertainment
7.0
Overall
7.9
Comfort
7.8
Crew
8.5
Boarding
8.1
Food
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Entertainment
7.0
Overall
7.9
Comfort
7.8
Crew
8.5
Boarding
8.1
Food
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Entertainment
7.0
Overall
7.9
Comfort
7.8
Crew
8.5
Boarding
8.1
Food
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Entertainment
7.0
Overall
7.9
Comfort
7.8
Crew
8.5
Boarding
8.1
Food
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Entertainment
7.0
Overall
7.9
Comfort
7.8
Crew
8.5
Boarding
8.1
Food
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Related info for your journey
Find useful and relevant information for your journey from Seattle to Maryland. 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 Seattle to Maryland
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Complete your trip
Complete your trip to Maryland by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Seattle to Maryland by cabin class
Find flights from Seattle to Maryland, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and Maryland flights
Browse other Seattle and Maryland flight options. Last updated on June 24, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Seattle to Maryland flights
Consider these flights traveling from Seattle to Maryland.
Top 7 airlines flying from Seattle to Maryland
Discover the top 7 airlines that operate flights from Seattle to Maryland. 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 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$103 | Average$329 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$128 | Average$327 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$154 | Average$241 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$178 | Average$638 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$199 | Average$405 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$226 | Average$458 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$245 | Average$431 | FlexibilityNo cancel fee | On-time75% |