$104+ 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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BWI
May 10 — May 171
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 September or February, 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 April 10, 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 April 10, 2026.
This Southwest deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/26:55 pm
SEA
- BWI
1 stop7h 50m
Southwest
Tue 5/56:20 pm
BWI
- SEA
1 stop8h 50m
Southwest
Deal found 4/7![Southwest logo]()
$217
This Southwest deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/26:40 am
SEA
- BWI
1 stop9h 25m
Southwest
Thu 5/74:45 pm
BWI
- SEA
2 stops11h 10m
Southwest
Deal found 4/7![Southwest logo]()
$222
This Southwest deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/46:15 pm
SEA
- BWI
1 stop8h 25m
Southwest
Sat 5/97:40 am
BWI
- SEA
2 stops15h 00m
Southwest
Deal found 4/7![Southwest logo]()
$228
This Delta deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/211:11 pm
SEA
- BWI
1 stop7h 00m
Delta
Tue 5/57:15 am
BWI
- SEA
1 stop10h 31m
Delta
Deal found 4/7![Delta logo]()
$237
This American Airlines deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/241:33 pm
SEA
- BWI
1 stop7h 23m
American Airlines
Sat 5/26:31 pm
BWI
- SEA
1 stop9h 05m
American Airlines
Deal found 4/7![American Airlines logo]()
$242
This Southwest deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/2611:55 pm
SEA
- BWI
1 stop8h 55m
Southwest
Wed 4/2910:50 am
BWI
- SEA
2 stops9h 05m
Southwest
Deal found 4/7![Southwest logo]()
$247
This Southwest deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/275:30 am
SEA
- BWI
2 stops10h 00m
Southwest
Fri 5/14:45 pm
BWI
- SEA
2 stops10h 20m
Southwest
Deal found 4/7![Southwest logo]()
$253
This Southwest deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/16:15 pm
SEA
- BWI
1 stop8h 25m
Southwest
Mon 5/47:10 pm
BWI
- SEA
1 stop7h 55m
Southwest
Deal found 4/7![Southwest logo]()
$258
This Delta deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2111:14 pm
SEA
- BWI
1 stop6h 57m
Delta
Tue 4/2811:51 am
BWI
- SEA
1 stop10h 03m
Delta
Deal found 4/7![Delta logo]()
$262
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 April 10, 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 April 10, 2026.
This Delta deal was found by Cheapflights users on 4/8. 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.
Fri 5/297:30 am
SEA
- BWI
1 stop8h 06m
Delta
Tue 6/912:32 pm
BWI
- SEA
1 stop9h 13m
Delta
Deal found 4/8![Delta logo]()
$237
This Southwest deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/125:20 am
SEA
- BWI
2 stops8h 05m
Southwest
Mon 8/176:40 am
BWI
- SEA
1 stop10h 15m
Southwest
Deal found 4/6![Southwest logo]()
$284
This Alaska Airlines deal was found by Cheapflights users on 4/8. 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.
Fri 9/2510:20 pm
SEA
- BWI
Nonstop5h 10m
Alaska Airlines
Mon 9/287:50 am
BWI
- SEA
Nonstop5h 41m
Alaska Airlines
Deal found 4/8![Alaska Airlines logo]()
$359
This Delta deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/209:45 pm
SEA
- BWI
1 stop8h 51m
Delta
Sat 4/256:03 am
BWI
- SEA
1 stop7h 29m
Delta
Deal found 4/5![Delta logo]()
$267
This Delta deal was found by Cheapflights users on 4/8. 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.
Fri 9/257:35 pm
SEA
- BWI
1 stop7h 28m
Delta
Mon 9/287:00 pm
BWI
- SEA
1 stop7h 26m
Delta
Deal found 4/8![Delta logo]()
$268
This Southwest deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/295:15 am
SEA
- BWI
2 stops8h 50m
Southwest
Sun 6/75:35 pm
BWI
- SEA
1 stop10h 35m
Southwest
Deal found 4/5![Southwest logo]()
$322
This Southwest deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/225:30 pm
SEA
- BWI
1 stop10h 05m
Southwest
Sun 8/309:00 am
BWI
- SEA
1 stop10h 40m
Southwest
Deal found 4/5![Southwest logo]()
$329
This Southwest deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/286:30 am
SEA
- BWI
2 stops10h 30m
Southwest
Thu 4/309:40 am
BWI
- SEA
1 stop15h 55m
Southwest
Deal found 4/6![Southwest logo]()
$358
This Delta deal was found by Cheapflights users on 4/9. 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 7/87:49 pm
SEA
- BWI
1 stop7h 08m
Delta
Wed 7/157:10 pm
BWI
- SEA
1 stop7h 48m
Delta
Deal found 4/9![Delta logo]()
$368
This Southwest deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1811:55 pm
SEA
- BWI
2 stops8h 55m
Southwest
Wed 5/278:50 am
BWI
- SEA
2 stops15h 10m
Southwest
Deal found 4/7![Southwest logo]()
$374
This Delta deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/305:30 am
SEA
- BWI
1 stop8h 08m
Delta
Sat 6/65:26 pm
BWI
- SEA
1 stop8h 20m
Delta
Deal found 4/6![Delta logo]()
$388
This Delta deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/55:45 pm
SEA
- BWI
1 stop9h 00m
Delta
Sun 6/76:19 am
BWI
- SEA
1 stop9h 39m
Delta
Deal found 4/7![Delta logo]()
$388
Last-minute flights from Seattle to BaltimoreDiscover last-minute flight deals from Seattle to Baltimore. Data last updated April 10, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Baltimore. Data last updated April 10, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2111:14 pm
SEA
- BWI
1 stop6h 57m
Delta
Tue 4/2811:51 am
BWI
- SEA
1 stop10h 03m
Delta
Deal found 4/7![Delta logo]()
$262
This American Airlines deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/241:33 pm
SEA
- BWI
1 stop7h 23m
American Airlines
Sat 5/26:31 pm
BWI
- SEA
1 stop9h 05m
American Airlines
Deal found 4/7![American Airlines logo]()
$242
This Southwest deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/2611:55 pm
SEA
- BWI
1 stop8h 55m
Southwest
Wed 4/2910:50 am
BWI
- SEA
2 stops9h 05m
Southwest
Deal found 4/7![Southwest logo]()
$247
This Southwest deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/275:30 am
SEA
- BWI
2 stops10h 00m
Southwest
Fri 5/14:45 pm
BWI
- SEA
2 stops10h 20m
Southwest
Deal found 4/7![Southwest logo]()
$253
This Southwest deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/16:15 pm
SEA
- BWI
1 stop8h 25m
Southwest
Mon 5/47:10 pm
BWI
- SEA
1 stop7h 55m
Southwest
Deal found 4/7![Southwest logo]()
$258
This Southwest deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/26:55 pm
SEA
- BWI
1 stop7h 50m
Southwest
Tue 5/56:20 pm
BWI
- SEA
1 stop8h 50m
Southwest
Deal found 4/7![Southwest logo]()
$217
This Southwest deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/26:40 am
SEA
- BWI
1 stop9h 25m
Southwest
Thu 5/74:45 pm
BWI
- SEA
2 stops11h 10m
Southwest
Deal found 4/7![Southwest logo]()
$222
This Delta deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/211:11 pm
SEA
- BWI
1 stop7h 00m
Delta
Tue 5/57:15 am
BWI
- SEA
1 stop10h 31m
Delta
Deal found 4/7![Delta logo]()
$237
This Southwest deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/46:15 pm
SEA
- BWI
1 stop8h 25m
Southwest
Sat 5/97:40 am
BWI
- SEA
2 stops15h 00m
Southwest
Deal found 4/7![Southwest logo]()
$228
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 April 10, 2026.
Search for one-way flight options from Seattle to Baltimore. Find affordable one-way fares based on user searches. Data last updated April 10, 2026.
This United Airlines deal was found by Cheapflights users on 4/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/85:25 pm
SEA
- BWI
1 stop10h 55m
United Airlines
Deal found 4/8![United Airlines logo]()
$104
This Delta deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/275:45 pm
SEA
- BWI
1 stop9h 18m
Delta
Deal found 4/6![Delta logo]()
$108
This Southwest deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/711:05 am
SEA
- BWI
1 stop9h 25m
Southwest
Deal found 4/7![Southwest logo]()
$109
This Kiwi.com deal was found by Cheapflights users on 4/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/49:19 pm
SEA
- BWI
2 stops19h 59m
Frontier
Deal found 4/10![Frontier logo]()
$110
This Kiwi.com deal was found by Cheapflights users on 4/9. 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.
Mon 5/1111:37 am
SEA
- BWI
2 stops29h 41m
Frontier
Deal found 4/9![Frontier logo]()
$113
This Kiwi.com deal was found by Cheapflights users on 4/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/57:50 pm
SEA
- BWI
2 stops17h 04m
Frontier
Deal found 4/10![Frontier logo]()
$117
This Delta deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/96:00 am
SEA
- BWI
1 stop8h 31m
Delta
Deal found 4/6![Delta logo]()
$119
This Kiwi.com deal was found by Cheapflights users on 4/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1211:06 am
SEA
- BWI
2 stops17h 37m
Frontier
Deal found 4/10![Frontier logo]()
$122
This Kiwi.com deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/27:12 pm
SEA
- BWI
2 stops57h 31m
Frontier
Deal found 4/6![Frontier logo]()
$127
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 April 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $217 (Southwest) |
One-way from | $104 (United Airlines) |
Popular in | December |
Cheapest in | September |
Average price | $382 |
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 April 10, 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
Fri 5/29
7:30 am-6:36 pm
1 stop8h 06m
Baltimore/Washington
Tue 6/9
12:32 pm-6:45 pm
1 stop9h 13m
$237
SeattleBaltimore
SEA - BWI
SEABWI
Seattle/Tacoma Intl
Mon 4/20
9:45 pm-9:36 am
1 stop8h 51m
Baltimore/Washington
Sat 4/25
6:03 am-10:32 am
1 stop7h 29m
$267
SeattleBaltimore
SEA - BWI
SEABWI
Seattle/Tacoma Intl
Fri 9/25
7:35 pm-6:03 am
1 stop7h 28m
Baltimore/Washington
Mon 9/28
7:00 pm-11:26 pm
1 stop7h 26m
$268
SeattleBaltimore
SEA - BWI
SEABWI
Seattle/Tacoma Intl
Wed 8/12
5:20 am-4:25 pm
2 stops8h 05m
Baltimore/Washington
Mon 8/17
6:40 am-1:55 pm
1 stop10h 15m
$284
SeattleBaltimore
SEA - BWI
SEABWI
Seattle/Tacoma Intl
Fri 5/29
5:15 am-5:05 pm
2 stops8h 50m
Baltimore/Washington
Sun 6/7
5:35 pm-1:10 am
1 stop10h 35m
$322
SeattleBaltimore
SEA - BWI
SEABWI
Seattle/Tacoma Intl
Sat 8/22
5:30 pm-6:35 am
1 stop10h 05m
Baltimore/Washington
Sun 8/30
9:00 am-4:40 pm
1 stop10h 40m
$329
SeattleBaltimore
SEA - BWI
SEABWI
Seattle/Tacoma Intl
Tue 4/28
6:30 am-8:00 pm
2 stops10h 30m
Baltimore/Washington
Thu 4/30
9:40 am-10:35 pm
1 stop15h 55m
$358
Quickest round-trip
SeattleBaltimore
SEA - BWI
SEABWI
Seattle/Tacoma Intl
Fri 9/25
10:20 pm-6:30 am
Nonstop5h 10m
Baltimore/Washington
Mon 9/28
7:50 am-10:31 am
Nonstop5h 41m
$359
SeattleBaltimore
SEA - BWI
SEABWI
Seattle/Tacoma Intl
Wed 7/8
7:49 pm-5:57 am
1 stop7h 08m
Baltimore/Washington
Wed 7/15
7:10 pm-11:58 pm
1 stop7h 48m
$368
SeattleBaltimore
SEA - BWI
SEABWI
Seattle/Tacoma Intl
Mon 5/18
11:55 pm-11:50 am
2 stops8h 55m
Baltimore/Washington
Wed 5/27
8:50 am-9:00 pm
2 stops15h 10m
$374
Showing 1-10 of 23 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 April.
| 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 Accuracy3 stars | 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
How far ahead should I book a flight from Seattle to Baltimore?
Use this chart to determine the optimal time to book a round-trip flight from Seattle to Baltimore. Price data was last updated on April 9, 2026.
The best time to book flights from Seattle to Baltimore is 84 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, May is the cheapest month in which you can book a flight from Seattle to Baltimore (average of $103). Flying from Seattle to Baltimore in November is currently the most expensive (average of $209). 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 April 10, 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
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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 April 10, 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.
Food
7.0
Crew
8.6
Overall
8.0
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Crew
8.6
Overall
8.0
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Crew
8.6
Overall
8.0
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Crew
8.6
Overall
8.0
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Crew
8.6
Overall
8.0
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Crew
8.6
Overall
8.0
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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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Seattle and Baltimore flights
Browse other Seattle and Baltimore flight options. Last updated on April 10, 2026.
Other flights from Seattle
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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 April 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$103 | Average$342 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$138 | Average$393 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$139 | Average$229 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$178 | Average$271 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$187 | Average$416 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$226 | Average$380 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$254 | Average$433 | FlexibilityNo cancel fee | On-time75% |