$119+ Cheap flights from Seattle to Baltimore (SEA - BWI)
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 11/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BWI
Nov 4 — Nov 111
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 November, 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 October 5, 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 October 5, 2026.
This Southwest deal was found by Cheapflights users on 10/5. 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.
Thu 10/225:10 pm -
1 stop9h 35m
Tue 10/273:05 pm -
2 stops10h 35m
Deal found 10/5![Southwest logo]()
$383
This Southwest deal was found by Cheapflights users on 10/3. Clicking the “Pick Dates” 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 11/25:15 am -
2 stops10h 40m
Mon 11/92:40 pm -
2 stops11h 25m
Deal found 10/3![Southwest logo]()
$384
This Southwest deal was found by Cheapflights users on 10/4. Clicking the “Pick Dates” 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 10/2011:30 am -
1 stop9h 25m
Fri 10/303:00 pm -
1 stop9h 00m
Deal found 10/4![Southwest logo]()
$386
This Mytrip deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” 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.
Thu 10/229:16 pm -
2 stops24h 18m
Fri 10/309:12 pm -
2 stops21h 00m
Deal found 10/1![Frontier logo]()
$390
This Mytrip deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” 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 10/309:13 pm -
2 stops24h 09m
Fri 11/68:41 pm -
2 stops24h 52m
Deal found 10/2![Frontier logo]()
$392
This Southwest deal was found by Cheapflights users on 10/4. Clicking the “Pick Dates” 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 10/232:10 pm -
1 stop7h 00m
Sat 11/71:00 pm -
2 stops11h 55m
Deal found 10/4![Southwest logo]()
$393
This Expedia deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/159:40 pm -
Nonstop4h 57m
Mon 1/116:20 pm -
Nonstop6h 01m
Deal found 10/2![Alaska Airlines logo]()
$395
This Alaska Airlines deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” 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 11/39:08 am -
Nonstop5h 04m
Sat 11/147:02 am -
Nonstop5h 54m
Deal found 9/30![Alaska Airlines logo]()
$397
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 October 5, 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 October 5, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” 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 11/59:41 pm -
Nonstop4h 59m
Mon 11/96:15 pm -
Nonstop5h 54m
Deal found 9/30![Alaska Airlines logo]()
$417
This Southwest deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” 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 10/2211:10 am -
1 stop10h 45m
Wed 10/289:05 am -
1 stop8h 15m
Deal found 9/30![Southwest logo]()
$437
This United Airlines deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” 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 10/3010:50 am -
1 stop7h 52m
Mon 11/28:30 am -
1 stop10h 42m
Deal found 10/1![United Airlines logo]()
$450
This Southwest deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” 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 11/61:55 pm -
1 stop7h 25m
Mon 11/94:45 pm -
1 stop9h 20m
Deal found 10/2![Southwest logo]()
$437
This Alaska Airlines deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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 12/159:05 am -
Nonstop4h 55m
Thu 12/247:05 am -
Nonstop6h 12m
Deal found 9/29![Alaska Airlines logo]()
$472
This Alaska Airlines deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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 12/169:05 am -
Nonstop4h 55m
Fri 12/257:05 am -
Nonstop6h 12m
Deal found 9/29![Alaska Airlines logo]()
$507
This Southwest deal was found by Cheapflights users on 10/3. Clicking the “Pick Dates” 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 12/205:15 am -
2 stops9h 25m
Sat 1/162:05 pm -
2 stops9h 35m
Deal found 10/3![Southwest logo]()
$553
This Alaska Airlines deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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 12/179:43 pm -
Nonstop5h 02m
Fri 12/257:05 am -
Nonstop6h 12m
Deal found 9/29![Alaska Airlines logo]()
$507
This Alaska Airlines deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” 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 12/99:40 pm -
Nonstop4h 57m
Wed 12/236:48 pm -
Nonstop6h 15m
Deal found 10/1![Alaska Airlines logo]()
$517
This Alaska Airlines deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” 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 12/411:40 pm -
1 stop8h 40m
Sun 12/66:03 pm -
Nonstop6h 13m
Deal found 10/2![Alaska Airlines logo]()
$527
This Alaska Airlines deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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 12/159:05 am -
Nonstop4h 55m
Sun 12/277:05 am -
Nonstop6h 12m
Deal found 9/29![Alaska Airlines logo]()
$567
Last-minute flights from Seattle to BaltimoreDiscover last-minute flight deals from Seattle to Baltimore. Data last updated October 5, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Baltimore. Data last updated October 5, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 10/4. Clicking the “Pick Dates” 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 10/2011:30 am -
1 stop9h 25m
Fri 10/303:00 pm -
1 stop9h 00m
Deal found 10/4![Southwest logo]()
$386
This Southwest deal was found by Cheapflights users on 10/5. 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.
Thu 10/225:10 pm -
1 stop9h 35m
Tue 10/273:05 pm -
2 stops10h 35m
Deal found 10/5![Southwest logo]()
$383
This Mytrip deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” 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.
Thu 10/229:16 pm -
2 stops24h 18m
Fri 10/309:12 pm -
2 stops21h 00m
Deal found 10/1![Frontier logo]()
$390
This Southwest deal was found by Cheapflights users on 10/4. Clicking the “Pick Dates” 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 10/232:10 pm -
1 stop7h 00m
Sat 11/71:00 pm -
2 stops11h 55m
Deal found 10/4![Southwest logo]()
$393
This Mytrip deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” 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 10/309:13 pm -
2 stops24h 09m
Fri 11/68:41 pm -
2 stops24h 52m
Deal found 10/2![Frontier logo]()
$392
This Southwest deal was found by Cheapflights users on 10/3. Clicking the “Pick Dates” 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 11/111:10 am -
1 stop7h 15m
Sat 11/79:40 am -
1 stop9h 25m
Deal found 10/3![Southwest logo]()
$399
This Southwest deal was found by Cheapflights users on 10/3. Clicking the “Pick Dates” 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 11/25:15 am -
2 stops10h 40m
Mon 11/92:40 pm -
2 stops11h 25m
Deal found 10/3![Southwest logo]()
$384
This Alaska Airlines deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” 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 11/39:08 am -
Nonstop5h 04m
Sat 11/147:02 am -
Nonstop5h 54m
Deal found 9/30![Alaska Airlines logo]()
$397
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 October 5, 2026.
Search for one-way flight options from Seattle to Baltimore. Find affordable one-way fares based on user searches. Data last updated October 5, 2026.
This Southwest deal was found by Cheapflights users on 10/4. Clicking the “Pick Dates” 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 11/36:30 pm -
1 stop8h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/4![Southwest logo]()
$119
This Southwest deal was found by Cheapflights users on 10/4. Clicking the “Pick Dates” 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 10/275:35 am -
2 stops11h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/4![Southwest logo]()
$125
This Kiwi.com deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” 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 10/318:09 pm -
2 stops35h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/2![Frontier logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” 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 11/29:13 pm -
2 stops33h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Frontier logo]()
$129
This Southwest deal was found by Cheapflights users on 10/4. Clicking the “Pick Dates” 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 10/266:50 pm -
1 stop7h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/4![Southwest logo]()
$130
This Kiwi.com deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” 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 11/37:48 pm -
2 stops20h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Frontier logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” 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 10/269:16 pm -
2 stops33h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Frontier logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” 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 10/199:16 pm -
2 stops33h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Frontier logo]()
$141
This Southwest deal was found by Cheapflights users on 10/4. Clicking the “Pick Dates” 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 10/2111:30 am -
1 stop9h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/4![Southwest logo]()
$143
This Southwest deal was found by Cheapflights users on 10/3. Clicking the “Pick Dates” 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 12/165:40 am -
2 stops14h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/3![Southwest logo]()
$154
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 October 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $383 (Southwest) |
One-way from | $119 (Southwest) |
Popular in | July |
Cheapest in | February |
Average price | $452 |
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 7,457,451 searches. Data last updated October 5, 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 Seattle/Tacoma Intl - BWI Baltimore/Washington
SEABWI
Seattle/Tacoma Intl
Mon 10/19
9:16 pm-9:27 am
2 stops33h 11m
Baltimore/Washington
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$122
SeattleBaltimore
SEA Seattle/Tacoma Intl - BWI Baltimore/Washington
SEABWI
Seattle/Tacoma Intl
Wed 11/11
4:40 pm-5:45 am
2 stops10h 05m
Baltimore/Washington
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$148
Quickest round-trip
SeattleBaltimore
SEA Seattle/Tacoma Intl - BWI Baltimore/Washington
SEABWI
Seattle/Tacoma Intl
Tue 12/1
9:40 pm-5:37 am
Nonstop4h 57m
Baltimore/Washington
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$199
SeattleBaltimore
SEA Seattle/Tacoma Intl - BWI Baltimore/Washington
SEABWI
Seattle/Tacoma Intl
Sun 10/18
9:16 pm-11:33 am
2 stops35h 17m
Baltimore/Washington
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$199
SeattleBaltimore
SEA Seattle/Tacoma Intl - BWI Baltimore/Washington
SEABWI
Seattle/Tacoma Intl
Sat 11/7
9:08 am-5:12 pm
Nonstop5h 04m
Baltimore/Washington
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$199
SeattleBaltimore
SEA Seattle/Tacoma Intl - BWI Baltimore/Washington
SEABWI
Seattle/Tacoma Intl
Sat 11/14
9:08 am-5:12 pm
Nonstop5h 04m
Baltimore/Washington
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$199
SeattleBaltimore
SEA Seattle/Tacoma Intl - BWI Baltimore/Washington
SEABWI
Seattle/Tacoma Intl
Tue 11/10
10:50 am-9:42 pm
1 stop7h 52m
Baltimore/Washington
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$204
SeattleBaltimore
SEA Seattle/Tacoma Intl - BWI Baltimore/Washington
SEABWI
Seattle/Tacoma Intl
Wed 11/18
10:50 am-9:42 pm
1 stop7h 52m
Baltimore/Washington
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$204
SeattleBaltimore
SEA Seattle/Tacoma Intl - BWI Baltimore/Washington
SEABWI
Seattle/Tacoma Intl
Sun 11/8
10:16 am-11:07 am
1 stop21h 51m
Baltimore/Washington
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$216
SeattleBaltimore
SEA Seattle/Tacoma Intl - BWI Baltimore/Washington
SEABWI
Seattle/Tacoma Intl
Sun 11/15
5:59 pm-6:00 am
1 stop9h 01m
Baltimore/Washington
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$219
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 October.
| 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
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 July is currently the most expensive (average of $573). 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 October 5, 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 October 5, 2026.
See what other customers who have flown with Alaska Airlines,Southwest, 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.
Overall
7.9
Boarding
8.1
Entertainment
7.0
Comfort
7.8
Crew
8.5
Food
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Overall
7.9
Boarding
8.1
Entertainment
7.0
Comfort
7.8
Crew
8.5
Food
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Overall
7.9
Boarding
8.1
Entertainment
7.0
Comfort
7.8
Crew
8.5
Food
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Overall
7.9
Boarding
8.1
Entertainment
7.0
Comfort
7.8
Crew
8.5
Food
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Overall
7.9
Boarding
8.1
Entertainment
7.0
Comfort
7.8
Crew
8.5
Food
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Overall
7.9
Boarding
8.1
Entertainment
7.0
Comfort
7.8
Crew
8.5
Food
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
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Top 5 airlines flying from Seattle to Baltimore
Discover the top 5 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 7,457,451 searches. Data last updated October 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$113 | Average$358 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$178 | Average$436 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$187 | Average$466 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$238 | Average$502 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$257 | Average$463 | FlexibilityNo cancel fee | On-time75% |