$129+ Cheap flights from Maryland to Seattle (SEA)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — SEA
Oct 22 — Oct 291
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Maryland to Seattle with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Maryland to Seattle
Cheapest
Best
Last-minute
One-way
Cheapest flights from Maryland to SeattleExplore the most affordable flight options available from Maryland to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 22, 2026.
Explore the most affordable flight options available from Maryland to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 22, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/107:02 am -
Nonstop5h 54m
Sat 11/149:08 am -
Nonstop5h 04m
Deal found 9/17![Alaska Airlines logo]()
$293
This Alaska Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/57:00 am -
Nonstop6h 11m
Sat 12/129:05 am -
Nonstop4h 55m
Deal found 9/17![Alaska Airlines logo]()
$299
This United Airlines deal was found by Cheapflights users on 9/17. 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 11/178:00 am -
1 stop11h 27m
Tue 11/1710:56 pm -
1 stop8h 53m
Deal found 9/17![United Airlines logo]()
$306
This Gotogate deal was found by Cheapflights users on 9/18. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/107:02 am -
Nonstop5h 54m
Tue 11/179:08 am -
Nonstop5h 04m
Deal found 9/18![Alaska Airlines logo]()
$307
This American Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/75:01 am -
1 stop7h 57m
Mon 10/1212:25 am -
1 stop7h 40m
Deal found 9/17![American Airlines logo]()
$311
This Alaska Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/97:02 am -
Nonstop5h 54m
Tue 11/179:08 am -
Nonstop5h 04m
Deal found 9/17![Alaska Airlines logo]()
$315
This Southwest deal was found by Cheapflights users on 9/17. 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.
Tue 11/175:50 pm -
1 stop8h 45m
Tue 11/248:40 pm -
1 stop10h 40m
Deal found 9/17![Southwest logo]()
$316
This Southwest deal was found by Cheapflights users on 9/17. 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.
Tue 10/2011:40 am -
1 stop13h 20m
Tue 10/277:05 am -
1 stop9h 55m
Deal found 9/17![Southwest logo]()
$317
This Mytrip deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/309:12 pm -
2 stops21h 00m
Wed 11/48:09 pm -
2 stops11h 43m
Deal found 9/17![Frontier logo]()
$319
This Orbitz deal was found by Cheapflights users on 9/17. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:02 am -
Nonstop5h 44m
Tue 10/279:03 am -
Nonstop5h 09m
Deal found 9/17![Alaska Airlines logo]()
$325
This American Airlines deal was found by Cheapflights users on 9/21. 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.
Tue 10/66:41 am -
1 stop8h 14m
Sat 10/109:42 pm -
1 stop10h 20m
Deal found 9/21![American Airlines logo]()
$812
This American Airlines deal was found by Cheapflights users on 9/21. 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.
Tue 11/246:22 am -
1 stop19h 09m
Fri 11/279:31 am -
1 stop10h 21m
Deal found 9/21![American Airlines logo]()
$859
Best flights from Maryland to SeattleDiscover carefully curated flight deals from Maryland to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 22, 2026.
Discover carefully curated flight deals from Maryland to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 22, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/77:02 am -
Nonstop5h 54m
Mon 11/99:41 pm -
Nonstop4h 59m
Deal found 9/17![Alaska Airlines logo]()
$315
This Southwest deal was found by Cheapflights users on 9/17. 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.
Tue 10/206:15 am -
2 stops10h 20m
Tue 10/275:35 am -
2 stops11h 25m
Deal found 9/17![Southwest logo]()
$321
This Delta deal was found by Cheapflights users on 9/17. 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.
Mon 10/266:32 pm -
1 stop8h 20m
Thu 10/296:00 am -
1 stop8h 27m
Deal found 9/17![Delta logo]()
$355
This Alaska Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/117:02 am -
Nonstop5h 54m
Mon 11/1611:42 pm -
1 stop8h 28m
Deal found 9/17![Alaska Airlines logo]()
$383
This Delta deal was found by Cheapflights users on 9/21. 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.
Thu 11/56:00 am -
1 stop9h 27m
Tue 11/107:55 pm -
1 stop7h 05m
Deal found 9/21![Delta logo]()
$397
This Southwest deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:20 am -
1 stop9h 40m
Tue 11/106:10 am -
2 stops10h 55m
Deal found 9/18![Southwest logo]()
$402
This American Airlines deal was found by Cheapflights users on 9/21. 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.
Tue 11/246:22 am -
1 stop19h 09m
Fri 11/279:31 am -
1 stop10h 21m
Deal found 9/21![American Airlines logo]()
$859
This Southwest deal was found by Cheapflights users on 9/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:15 am -
2 stops10h 20m
Mon 10/265:10 pm -
1 stop9h 35m
Deal found 9/21![Southwest logo]()
$402
This Delta deal was found by Cheapflights users on 9/21. 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.
Tue 11/177:25 pm -
1 stop7h 32m
Sat 11/217:55 pm -
1 stop7h 05m
Deal found 9/21![Delta logo]()
$442
This Southwest deal was found by Cheapflights users on 9/17. 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 10/78:10 am -
2 stops14h 40m
Wed 10/1411:30 am -
1 stop9h 25m
Deal found 9/17![Southwest logo]()
$433
This Alaska Airlines deal was found by Cheapflights users on 9/19. 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.
Wed 10/287:02 am -
Nonstop5h 44m
Sun 11/19:41 pm -
Nonstop4h 59m
Deal found 9/19![Alaska Airlines logo]()
$482
This Southwest deal was found by Cheapflights users on 9/17. 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 10/103:10 pm -
2 stops9h 35m
Sun 11/17:55 am -
1 stop11h 00m
Deal found 9/17![Southwest logo]()
$448
This Delta deal was found by Cheapflights users on 9/18. 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.
Tue 10/64:45 pm -
1 stop8h 18m
Fri 10/305:55 pm -
1 stop8h 50m
Deal found 9/18![Delta logo]()
$495
This American Airlines deal was found by Cheapflights users on 9/22. 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 11/66:30 am -
1 stop8h 04m
Mon 11/99:15 am -
1 stop10h 05m
Deal found 9/22![American Airlines logo]()
$930
This American Airlines deal was found by Cheapflights users on 9/21. 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.
Tue 10/66:41 am -
2 stops13h 07m
Sat 10/109:42 pm -
1 stop10h 20m
Deal found 9/21![American Airlines logo]()
$977
This American Airlines deal was found by Cheapflights users on 9/20. 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.
Fri 10/96:41 am -
1 stop7h 58m
Sun 10/119:42 pm -
1 stop10h 20m
Deal found 9/20![American Airlines logo]()
$1,042
Last-minute flights from Maryland to SeattleDiscover last-minute flight deals from Maryland to Seattle. Data last updated September 22, 2026 and is based on user searches.
Discover last-minute flight deals from Maryland to Seattle. Data last updated September 22, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/18. 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.
Thu 10/16:41 am -
1 stop7h 59m
Sun 10/47:15 am -
1 stop9h 28m
Deal found 9/18![American Airlines logo]()
$1,042
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Mon 10/56:50 pm -
1 stop9h 25m
Tue 10/67:00 am -
1 stop8h 13m
Deal found 9/17![United Airlines logo]()
$328
This Delta deal was found by Cheapflights users on 9/17. 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 10/64:45 pm -
1 stop8h 18m
Wed 10/216:00 am -
1 stop7h 51m
Deal found 9/17![Delta logo]()
$334
This American Airlines deal was found by Cheapflights users on 9/21. 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.
Tue 10/66:41 am -
1 stop8h 14m
Sat 10/109:42 pm -
1 stop10h 20m
Deal found 9/21![American Airlines logo]()
$812
This American Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/75:01 am -
1 stop7h 57m
Mon 10/1212:25 am -
1 stop7h 40m
Deal found 9/17![American Airlines logo]()
$311
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Sat 10/105:29 pm -
1 stop8h 27m
Sat 10/319:05 am -
2 stops11h 03m
Deal found 9/17![United Airlines logo]()
$316
This Delta deal was found by Cheapflights users on 9/17. 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 10/134:45 pm -
1 stop10h 07m
Mon 10/1911:10 pm -
1 stop9h 42m
Deal found 9/17![Delta logo]()
$333
This Alaska Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:15 pm -
Nonstop5h 45m
Tue 10/209:18 pm -
Nonstop5h 02m
Deal found 9/17![Alaska Airlines logo]()
$293
This Southwest deal was found by Cheapflights users on 9/17. 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.
Tue 10/2011:40 am -
1 stop13h 20m
Tue 10/277:05 am -
1 stop9h 55m
Deal found 9/17![Southwest logo]()
$317
This Orbitz deal was found by Cheapflights users on 9/17. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:02 am -
Nonstop5h 44m
Tue 10/279:03 am -
Nonstop5h 09m
Deal found 9/17![Alaska Airlines logo]()
$325
This Travelocity deal was found by Cheapflights users on 9/17. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/287:02 am -
Nonstop5h 44m
Mon 11/29:41 pm -
Nonstop4h 59m
Deal found 9/17![Alaska Airlines logo]()
$315
This Mytrip deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/309:12 pm -
2 stops21h 00m
Wed 11/48:09 pm -
2 stops11h 43m
Deal found 9/17![Frontier logo]()
$319
One-way flights from Maryland to SeattleSearch for one-way flight options from Maryland to Seattle. Find affordable one-way fares based on user searches. Data last updated September 22, 2026.
Search for one-way flight options from Maryland to Seattle. Find affordable one-way fares based on user searches. Data last updated September 22, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/19. 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.
Mon 10/196:25 pm -
2 stops47h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Frontier logo]()
$129
This Mytrip deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/209:12 pm -
2 stops21h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Frontier logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/81:54 pm -
2 stops28h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Frontier logo]()
$135
This Kiwi.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/179:12 pm -
2 stops21h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Frontier logo]()
$140
This American Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:30 pm -
1 stop9h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![American Airlines logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/151:54 pm -
2 stops28h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Frontier logo]()
$162
Find flight deals from Maryland to Seattle
Keep the following information in mind while searching for Maryland to Seattle flight deals. Data was last updated September 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $293 (Alaska Airlines) |
One-way from | $129 (Kiwi.com) |
Popular in | July |
Cheapest in | February |
Average price | $417 |
Good round-trip deal | $426 or less |
Good one-way deal | $287 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Maryland to Seattle 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 7,457,451 searches. Data last updated September 22, 2026.
Use the filters below to find and compare flights from Maryland to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BaltimoreSeattle
BWI Baltimore/Washington - SEA Seattle/Tacoma Intl
BWISEA
Baltimore/Washington
Tue 10/20
8:12 am-2:19 pm
1 stop9h 07m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$156
BaltimoreSeattle
BWI Baltimore/Washington - SEA Seattle/Tacoma Intl
BWISEA
Baltimore/Washington
Thu 12/17
6:40 pm-12:40 am
1 stop9h 00m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$199
BaltimoreSeattle
BWI Baltimore/Washington - SEA Seattle/Tacoma Intl
BWISEA
Baltimore/Washington
Sat 11/21
5:45 pm-12:45 am
2 stops10h 00m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$204
BaltimoreSeattle
BWI Baltimore/Washington - SEA Seattle/Tacoma Intl
BWISEA
Baltimore/Washington
Sat 10/31
11:00 am-6:15 pm
2 stops10h 15m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$204
BaltimoreSeattle
BWI Baltimore/Washington - SEA Seattle/Tacoma Intl
BWISEA
Baltimore/Washington
Wed 10/21
9:09 am-9:01 pm
2 stops14h 52m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$269
Quickest round-trip
BaltimoreSeattle
BWI Baltimore/Washington - SEA Seattle/Tacoma Intl
BWISEA
Baltimore/Washington
Mon 10/19
7:02 am-9:46 am
Nonstop5h 44m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$274
BaltimoreSeattle
BWI Baltimore/Washington - SEA Seattle/Tacoma Intl
BWISEA
Baltimore/Washington
Fri 11/27
7:00 am-9:55 am
Nonstop5h 55m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$275
BaltimoreSeattle
BWI Baltimore/Washington - SEA Seattle/Tacoma Intl
BWISEA
Baltimore/Washington
Sat 9/26
10:50 am-4:50 pm
1 stop9h 00m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$281
BaltimoreSeattle
BWI Baltimore/Washington - SEA Seattle/Tacoma Intl
BWISEA
Baltimore/Washington
Mon 12/21
5:40 pm-1:15 am
2 stops10h 35m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$305
BaltimoreSeattle
BWI Baltimore/Washington - SEA Seattle/Tacoma Intl
BWISEA
Baltimore/Washington
Sat 11/7
7:02 am-9:56 am
Nonstop5h 54m
Seattle/Tacoma Intl
Mon 11/9
9:41 pm-5:40 am
Nonstop4h 59m
$315
Showing 1-10 of 27 resultsSorted by cheapest first
Best time to book a flight from Maryland to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Maryland with our price prediction graph.
BWI-SEA
SBY-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 Maryland to Seattle
USMD-SEA
BWI-SEA
SBY-SEA
What is the cheapest month to book a flight from Maryland to Seattle?
Currently, February is the cheapest month in which you can book a flight from Maryland to Seattle (average of $297). Flying from Maryland to Seattle in June is currently the most expensive (average of $534). 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 MD to SEA?
Find hourly flight availability from Maryland to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 22, 2026.
It’s typically best to fly out from Maryland to Seattle in the evening. Doing so could potentially save you 37% on the flight price compared to flying at noon, which is usually more expensive.
How much does it cost to fly round-trip from Maryland to Seattle?
Airfare is below average for this route at the moment.
Maryland to Seattle flights typically cost between $312 and $510 in October.The cheapest round-trip price found within the last 5 days was $293 on Alaska Airlines (Oct 14-Oct 20).
How far ahead should I book a flight from Maryland to Seattle?
The best time to book flights from Maryland to Seattle is 73 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Related info for your journey
Find useful and relevant information for your journey from Maryland to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsSeaTac
Renton
Tacoma
Lacey
Leavenworth
Olympia
Tukwila
Snoqualmie
Puyallup
Lynnwood
Centralia
Kent
Tumwater
Ellensburg
Issaquah
Marysville
Ocean Shores
Lakewood
Fife
Poulsbo
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Seattle flight routes
Alternative routes for Maryland to Seattle
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Seattle by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Maryland to Seattle by cabin class
Find flights from Maryland to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Maryland and Seattle flights
Browse other Maryland and Seattle flight options. Last updated on September 22, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Seattle
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 22, 2026.
Top 6 airlines flying from Maryland to Seattle
Discover the top 6 airlines that operate flights from Maryland to Seattle. 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 7,457,451 searches. Data last updated September 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$99 | Average$304 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$179 | Average$397 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$186 | Average$470 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$219 | Average$369 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$238 | Average$409 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$276 | Average$465 | FlexibilityNo cancel fee | On-time75% |