$102+ Cheap flights from Seattle to Baltimore (SEA - BWI)
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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BWI
Aug 12 — Aug 191
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Baltimore 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.Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Baltimore/Washington are usually found in February or September, booked 84 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday
Cheap flight deals from Seattle to Baltimore
Cheapest
Best
Last-minute
One-way
Cheapest flights from Seattle to BaltimoreExplore the most affordable flight options available from Seattle to Baltimore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 13, 2026.
Explore the most affordable flight options available from Seattle to Baltimore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 13, 2026.
This Alaska Airlines deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 9/179:57 am
SEA
- BWI
Nonstop5h 11m
Alaska Airlines
Mon 9/217:15 pm
BWI
- SEA
Nonstop5h 42m
Alaska Airlines
Deal found 7/8![Alaska Airlines logo]()
$343
This Southwest deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2710:30 pm
SEA
- BWI
Nonstop5h 00m
Southwest
Sat 9/510:00 am
BWI
- SEA
1 stop13h 30m
Southwest
Deal found 7/10![Southwest logo]()
$344
This SmartFares deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/410:23 pm
SEA
- BWI
Nonstop5h 07m
Alaska Airlines
Fri 9/117:15 pm
BWI
- SEA
Nonstop5h 42m
Alaska Airlines
Deal found 7/12![Alaska Airlines logo]()
$345
This Southwest deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” 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 9/115:00 am
SEA
- BWI
2 stops10h 15m
Southwest
Mon 9/144:10 pm
BWI
- SEA
1 stop7h 35m
Southwest
Deal found 7/10![Southwest logo]()
$346
This Southwest deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 8/145:50 pm
SEA
- BWI
1 stop9h 45m
Southwest
Tue 8/1812:10 pm
BWI
- SEA
2 stops9h 00m
Southwest
Deal found 7/8![Southwest logo]()
$347
This Delta deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 9/65:30 am
SEA
- BWI
1 stop8h 19m
Delta
Tue 10/66:10 pm
BWI
- SEA
1 stop8h 42m
Delta
Deal found 7/8![Delta logo]()
$348
This Southwest deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” 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 9/107:30 pm
SEA
- BWI
1 stop8h 05m
Southwest
Sun 9/137:00 pm
BWI
- SEA
1 stop8h 50m
Southwest
Deal found 7/9![Southwest logo]()
$349
This Booking.com deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” 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.
Sun 9/610:23 pm
SEA
- BWI
Nonstop5h 07m
Alaska Airlines
Wed 9/97:50 am
BWI
- SEA
Nonstop5h 39m
Alaska Airlines
Deal found 7/10![Alaska Airlines logo]()
$350
This Southwest deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2212:10 am
SEA
- BWI
2 stops9h 25m
Southwest
Mon 10/266:15 am
BWI
- SEA
2 stops11h 20m
Southwest
Deal found 7/8![Southwest logo]()
$353
This Southwest deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:40 am
SEA
- BWI
1 stop8h 05m
Southwest
Mon 8/241:45 pm
BWI
- SEA
2 stops10h 00m
Southwest
Deal found 7/8![Southwest logo]()
$354
This Orbitz deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 10/2011:53 am
SEA
- BWI
1 stop9h 23m
Alaska Airlines
Sat 10/247:00 am
BWI
- SEA
Nonstop5h 46m
Alaska Airlines
Deal found 7/8![Alaska Airlines logo]()
$356
This Travelocity deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” 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.
Tue 9/810:23 pm
SEA
- BWI
Nonstop5h 07m
Alaska Airlines
Thu 9/107:15 pm
BWI
- SEA
Nonstop5h 42m
Alaska Airlines
Deal found 7/9![Alaska Airlines logo]()
$357
Best flights from Seattle to BaltimoreDiscover carefully curated flight deals from Seattle to Baltimore that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 13, 2026.
Discover carefully curated flight deals from Seattle to Baltimore that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 13, 2026.
This Southwest deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:40 am
SEA
- BWI
1 stop8h 05m
Southwest
Mon 8/241:45 pm
BWI
- SEA
2 stops10h 00m
Southwest
Deal found 7/8![Southwest logo]()
$354
This Alaska Airlines deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” 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 8/2810:23 pm
SEA
- BWI
Nonstop5h 07m
Alaska Airlines
Sat 9/57:15 pm
BWI
- SEA
Nonstop5h 42m
Alaska Airlines
Deal found 7/11![Alaska Airlines logo]()
$377
This Delta deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” 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 8/1211:59 pm
SEA
- BWI
1 stop7h 58m
Delta
Wed 8/197:39 am
BWI
- SEA
1 stop10h 11m
Delta
Deal found 7/9![Delta logo]()
$383
This Alaska Airlines deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” 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 8/2610:00 am
SEA
- BWI
Nonstop5h 04m
Alaska Airlines
Wed 9/27:15 pm
BWI
- SEA
Nonstop5h 42m
Alaska Airlines
Deal found 7/12![Alaska Airlines logo]()
$377
This Southwest deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 8/143:25 pm
SEA
- BWI
2 stops12h 05m
Southwest
Tue 8/1812:10 pm
BWI
- SEA
2 stops9h 00m
Southwest
Deal found 7/8![Southwest logo]()
$385
This Delta deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” 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 8/2311:59 pm
SEA
- BWI
1 stop7h 58m
Delta
Sun 8/306:05 am
BWI
- SEA
1 stop7h 55m
Delta
Deal found 7/9![Delta logo]()
$397
This Southwest deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” 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 8/2810:30 pm
SEA
- BWI
Nonstop5h 00m
Southwest
Sat 9/52:45 pm
BWI
- SEA
1 stop11h 10m
Southwest
Deal found 7/11![Southwest logo]()
$387
This Alaska Airlines deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” 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 8/2510:00 am
SEA
- BWI
Nonstop5h 04m
Alaska Airlines
Fri 9/114:43 pm
BWI
- SEA
1 stop8h 56m
Alaska Airlines
Deal found 7/13![Alaska Airlines logo]()
$387
This Delta deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” 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 9/311:10 pm
SEA
- BWI
1 stop6h 44m
Delta
Sun 9/65:36 pm
BWI
- SEA
1 stop7h 29m
Delta
Deal found 7/11![Delta logo]()
$397
This Southwest deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 8/273:25 pm
SEA
- BWI
2 stops12h 05m
Southwest
Mon 8/311:45 pm
BWI
- SEA
2 stops10h 00m
Southwest
Deal found 7/8![Southwest logo]()
$389
This Alaska Airlines deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” 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 8/1210:22 pm
SEA
- BWI
Nonstop5h 05m
Alaska Airlines
Wed 8/194:43 pm
BWI
- SEA
1 stop8h 56m
Alaska Airlines
Deal found 7/10![Alaska Airlines logo]()
$413
This Southwest deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” 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 9/155:20 am
SEA
- BWI
2 stops8h 05m
Southwest
Sun 9/2010:20 am
BWI
- SEA
2 stops10h 45m
Southwest
Deal found 7/10![Southwest logo]()
$389
Last-minute flights from Seattle to BaltimoreDiscover last-minute flight deals from Seattle to Baltimore. Data last updated July 13, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Baltimore. Data last updated July 13, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” 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 8/410:22 pm
SEA
- BWI
Nonstop5h 05m
Alaska Airlines
Tue 9/87:50 am
BWI
- SEA
Nonstop5h 39m
Alaska Airlines
Deal found 7/10![Alaska Airlines logo]()
$364
This Southwest deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” 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 8/126:10 pm
SEA
- BWI
1 stop13h 30m
Southwest
Fri 8/143:25 pm
BWI
- SEA
1 stop12h 15m
Southwest
Deal found 7/10![Southwest logo]()
$353
This Southwest deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 8/126:10 pm
SEA
- BWI
1 stop13h 30m
Southwest
Wed 8/1910:30 am
BWI
- SEA
2 stops12h 45m
Southwest
Deal found 7/8![Southwest logo]()
$360
This American Airlines deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” 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 8/135:10 am
SEA
- BWI
1 stop7h 04m
American Airlines
Mon 8/174:25 pm
BWI
- SEA
1 stop8h 34m
American Airlines
Deal found 7/10![American Airlines logo]()
$363
This Southwest deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 8/145:50 pm
SEA
- BWI
1 stop9h 45m
Southwest
Tue 8/1812:10 pm
BWI
- SEA
2 stops9h 00m
Southwest
Deal found 7/8![Southwest logo]()
$347
This Southwest deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:40 am
SEA
- BWI
1 stop8h 05m
Southwest
Mon 8/241:45 pm
BWI
- SEA
2 stops10h 00m
Southwest
Deal found 7/8![Southwest logo]()
$354
This Southwest deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 8/224:35 pm
SEA
- BWI
1 stop11h 00m
Southwest
Sat 8/296:55 am
BWI
- SEA
1 stop10h 25m
Southwest
Deal found 7/8![Southwest logo]()
$349
This Delta deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 8/2311:59 pm
SEA
- BWI
1 stop10h 06m
Delta
Sat 9/125:10 pm
BWI
- SEA
1 stop9h 49m
Delta
Deal found 7/8![Delta logo]()
$348
This Alaska Airlines deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” 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 8/2710:23 pm
SEA
- BWI
Nonstop5h 07m
Alaska Airlines
Mon 8/317:15 pm
BWI
- SEA
Nonstop5h 42m
Alaska Airlines
Deal found 7/10![Alaska Airlines logo]()
$343
This Southwest deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2710:30 pm
SEA
- BWI
Nonstop5h 00m
Southwest
Sat 9/510:00 am
BWI
- SEA
1 stop13h 30m
Southwest
Deal found 7/10![Southwest logo]()
$344
This Kissandfly.com deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” 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.
Fri 8/2810:23 pm
SEA
- BWI
Nonstop5h 07m
Alaska Airlines
Sat 9/57:50 am
BWI
- SEA
Nonstop5h 39m
Alaska Airlines
Deal found 7/11![Alaska Airlines logo]()
$362
One-way flights from Seattle to BaltimoreSearch for one-way flight options from Seattle to Baltimore. Find affordable one-way fares based on user searches. Data last updated July 13, 2026.
Search for one-way flight options from Seattle to Baltimore. Find affordable one-way fares based on user searches. Data last updated July 13, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/237:00 am
SEA
- BWI
2 stops25h 07m
Frontier
Deal found 7/11![Frontier logo]()
$102
This Kiwi.com deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:00 am
SEA
- BWI
2 stops25h 07m
Frontier
Deal found 7/12![Frontier logo]()
$104
This Kiwi.com deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” 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 8/187:06 pm
SEA
- BWI
2 stops42h 07m
Frontier
Deal found 7/9![Frontier logo]()
$105
This Kiwi.com deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” 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 9/88:53 pm
SEA
- BWI
2 stops35h 14m
Frontier
Deal found 7/11![Frontier logo]()
$117
This Kiwi.com deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/127:00 am
SEA
- BWI
2 stops38h 11m
Frontier
Deal found 7/8![Frontier logo]()
$120
This Kiwi.com deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/198:53 pm
SEA
- BWI
2 stops24h 06m
Frontier
Deal found 7/11![Frontier logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” 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 8/258:53 pm
SEA
- BWI
2 stops34h 31m
Frontier
Deal found 7/11![Frontier logo]()
$125
Find flight deals from Seattle to Baltimore
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Baltimore (BWI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $343 (Alaska Airlines) |
One-way from | $102 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $487 |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Baltimore 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 July 13, 2026.
Use the filters below to find and compare flights from Seattle to Baltimore that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleBaltimore
SEA - BWI
SEABWI
Seattle/Tacoma Intl
Wed 8/19
6:40 am-5:45 pm
1 stop8h 05m
Baltimore/Washington
Mon 8/24
1:45 pm-8:45 pm
2 stops10h 00m
$354
SeattleBaltimore
SEA - BWI
SEABWI
Seattle/Tacoma Intl
Fri 8/28
10:23 pm-6:30 am
Nonstop5h 07m
Baltimore/Washington
Sat 9/5
7:15 pm-9:57 pm
Nonstop5h 42m
$377
Quickest round-trip
SeattleBaltimore
SEA - BWI
SEABWI
Seattle/Tacoma Intl
Wed 8/26
10:00 am-6:04 pm
Nonstop5h 04m
Baltimore/Washington
Wed 9/2
7:15 pm-9:57 pm
Nonstop5h 42m
$377
SeattleBaltimore
SEA - BWI
SEABWI
Seattle/Tacoma Intl
Wed 8/12
11:59 pm-10:57 am
1 stop7h 58m
Baltimore/Washington
Wed 8/19
7:39 am-2:50 pm
1 stop10h 11m
$383
SeattleBaltimore
SEA - BWI
SEABWI
Seattle/Tacoma Intl
Fri 8/14
3:25 pm-6:30 am
2 stops12h 05m
Baltimore/Washington
Tue 8/18
12:10 pm-6:10 pm
2 stops9h 00m
$385
SeattleBaltimore
SEA - BWI
SEABWI
Seattle/Tacoma Intl
Fri 8/28
10:30 pm-6:30 am
Nonstop5h 00m
Baltimore/Washington
Sat 9/5
2:45 pm-10:55 pm
1 stop11h 10m
$387
SeattleBaltimore
SEA - BWI
SEABWI
Seattle/Tacoma Intl
Tue 8/25
10:00 am-6:04 pm
Nonstop5h 04m
Baltimore/Washington
Fri 9/11
4:43 pm-10:39 pm
1 stop8h 56m
$387
SeattleBaltimore
SEA - BWI
SEABWI
Seattle/Tacoma Intl
Thu 8/27
3:25 pm-6:30 am
2 stops12h 05m
Baltimore/Washington
Mon 8/31
1:45 pm-8:45 pm
2 stops10h 00m
$389
SeattleBaltimore
SEA - BWI
SEABWI
Seattle/Tacoma Intl
Tue 9/15
5:20 am-4:25 pm
2 stops8h 05m
Baltimore/Washington
Sun 9/20
10:20 am-6:05 pm
2 stops10h 45m
$389
SeattleBaltimore
SEA - BWI
SEABWI
Seattle/Tacoma Intl
Sun 8/23
11:59 pm-10:57 am
1 stop7h 58m
Baltimore/Washington
Sun 8/30
6:05 am-11:00 am
1 stop7h 55m
$397
Showing 1-10 of 22 resultsSorted by cheapest first
Compare providers for flights from Seattle to Baltimore
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Baltimore in July.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Seattle-Baltimore flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Baltimore flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Baltimore flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-Baltimore flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Baltimore flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Seattle to Baltimore
Have a flexible travel schedule? Discover the best time to fly to Baltimore from Seattle with our price prediction graph.
SEA-BWI
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 Baltimore
Prices
Airlines
How far ahead should I book a flight from Seattle to Baltimore?
The best time to book flights from Seattle to Baltimore is 83 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.
What is the cheapest month to book a flight from Seattle to Baltimore?
Currently, February is the cheapest month in which you can book a flight from Seattle to Baltimore (average of $337). Flying from Seattle to Baltimore in June is currently the most expensive (average of $507). 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 BWI?
Find hourly flight availability from Seattle to Baltimore. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 13, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Baltimore as you normally would.
The best insider tips for Seattle to Baltimore flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Seattle to Baltimore trip
Our travel experts
Reviews of airlines servicing Baltimore
Get insights into the airlines that provide service to Baltimore. 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 Baltimore. Reviews last updated July 13, 2026.
See what other customers who have flown with Southwest,Alaska Airlines, andDelta from Seattle to Baltimore have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentJoseph,Sep 2023
LAX - BWI
Comfort
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentJoseph,Sep 2023
LAX - BWI
Comfort
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentJoseph,Sep 2023
LAX - BWI
Comfort
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentJoseph,Sep 2023
LAX - BWI
Comfort
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentJoseph,Sep 2023
LAX - BWI
Comfort
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentJoseph,Sep 2023
LAX - BWI
Related info for your journey
Find useful and relevant information for your journey from Seattle to Baltimore. 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 Baltimore
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Complete your trip
Complete your trip to Baltimore by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Seattle to Baltimore by cabin class
Find flights from Seattle to Baltimore, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and Baltimore flights
Browse other Seattle and Baltimore flight options. Last updated on July 13, 2026.
Other flights from Seattle
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on July 13, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 7 airlines flying from Seattle to Baltimore
Discover the top 7 airlines that operate flights from Seattle to Baltimore. 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 July 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$103 | Average$331 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$128 | Average$308 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$154 | Average$289 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$178 | Average$327 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$199 | Average$449 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$226 | Average$468 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$245 | Average$439 | FlexibilityNo cancel fee | On-time75% |