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$635+ Cheap flights from Baltimore (BWI) to Oulu (OUL)

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 8/24. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — OUL
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheap flight deals from Baltimore to Oulu

Discover tips and strategies to find the most affordable flight options for your journey from Baltimore (BWI) to Oulu (OUL). 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 29, 2025.

Round-trip from

$1,019
(KAYAK)

One-way from

$635
(American Airlines)
From Baltimore/Washington to Oulu
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One-way flight from Baltimore/Washington to Oulu
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Find flight deals from Baltimore to Oulu

Cheapest flights from Baltimore to Oulu
Explore the most affordable flight options available from Baltimore to Oulu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This KAYAK deal was found by Cheapflights users on 7/27. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/136:54 pmBWI - OUL
3 stops47h 06mBritish Airways
Wed 12/172:20 pmOUL - BWI
2 stops35h 25mBritish Airways
Deal found 7/27$1,019
This Finnair deal was found by Cheapflights users on 7/28. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/139:35 pmBWI - OUL
2 stops26h 25mMultiple Airlines
Wed 12/179:05 amOUL - BWI
2 stops20h 21mMultiple Airlines
Deal found 7/28$1,054
This Finnair deal was found by Cheapflights users on 7/27. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/249:35 pmBWI - OUL
2 stops20h 25mFinnair
Sat 12/206:05 pmOUL - BWI
2 stops31h 40mFinnair
Deal found 7/27$1,198

Cheapflights Fare Finder

 
Customize your flight search to find flights from Baltimore to Oulu 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 29, 2025.
Use the filters below to find and compare flights from Baltimore to Oulu that are best for you.

Fly from

Baltimore

Fly to

Oulu

Route

Depart

Return

Price

BaltimoreOulu

BWI - OUL

BWIOUL

Baltimore/Washington

Wed 8/13

6:54 pm-1:00 am

3 stops47h 06m

Oulu

Wed 12/17

2:20 pm-6:45 pm

2 stops35h 25m

$1,019

BaltimoreOulu

BWI - OUL

BWIOUL

Baltimore/Washington

Wed 8/13

9:35 pm-7:00 am

2 stops26h 25m

Oulu

Wed 12/17

9:05 am-10:26 pm

2 stops20h 21m

$1,054

BaltimoreOulu

BWI - OUL

BWIOUL

Baltimore/Washington

Sun 8/24

9:35 pm-1:00 am

2 stops20h 25m

Oulu

Sat 12/20

6:05 pm-6:45 pm

2 stops31h 40m

$1,198

BaltimoreOulu

BWI - OUL

BWIOUL

Baltimore/Washington

Sun 8/24

6:20 pm-4:05 pm

2 stops14h 45m

$635

BaltimoreOulu

BWI - OUL

BWIOUL

Baltimore/Washington

Mon 9/1

9:35 pm-1:00 am

2 stops20h 25m

$656

BaltimoreOulu

BWI - OUL

BWIOUL

Baltimore/Washington

Wed 9/3

9:35 pm-7:00 am

2 stops26h 25m

$760

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Best time to book a flight from Baltimore to Oulu

Have a flexible travel schedule? Discover the best time to fly to Oulu from Baltimore with our price prediction graph.
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.

Reviews of airlines servicing Oulu

Get insights into the airlines that provide service to Oulu. 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 Oulu. Reviews last updated July 29, 2025.
Read reviews from past customers who have flown Finnair and British Airways from Baltimore to Oulu. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,316 reviews

Crew

8.1

Comfort

7.5

Entertainment

6.9

Food

6.7

Overall

7.6

Boarding

7.6

Reviews

1 / 20
6.0
Good

Rowland,Dec 2024

FRA - HEL

Finnair need to get a better system for boarding. Hundreds of passengers all attempting to get their boarding cards and passports checked at the gate and then get onto the aircraft is ridiculous, time consuming and frankly unfair to passengers.
Finnair
7.6
Good
1,316 reviews
Finnair
7.6
Good
1,316 reviews

Crew

8.1

Comfort

7.5

Entertainment

6.9

Food

6.7

Overall

7.6

Boarding

7.6

Reviews

1 / 20
6.0
Good

Rowland,Dec 2024

FRA - HEL

Finnair need to get a better system for boarding. Hundreds of passengers all attempting to get their boarding cards and passports checked at the gate and then get onto the aircraft is ridiculous, time consuming and frankly unfair to passengers.
British Airways
6.6
Okay
7,208 reviews
Finnair
7.6
Good
1,316 reviews

Crew

8.1

Comfort

7.5

Entertainment

6.9

Food

6.7

Overall

7.6

Boarding

7.6

Reviews

1 / 20
6.0
Good

Rowland,Dec 2024

FRA - HEL

Finnair need to get a better system for boarding. Hundreds of passengers all attempting to get their boarding cards and passports checked at the gate and then get onto the aircraft is ridiculous, time consuming and frankly unfair to passengers.

Related info for your journey

Find useful and relevant information for your journey from Baltimore to Oulu. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find deals for flights from Baltimore to Oulu that include hotel bookings?

    Yes. In addition to deals on Baltimore to Oulu flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Baltimore to Oulu?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Baltimore to Oulu.

  • Can I find deals for business class flights from Baltimore to Oulu?

    Yes. Cheapflights offers flight deals from Baltimore to Oulu by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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