$224+ Cheap flights from Washington, D.C. (WAS) to Oslo
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 7/10. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Washington, D.C. to Oslo 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 Washington, D.C. to Oslo are usually found in February or April, booked 86 days in advance, depart on a Thursday or Wednesday and return on a Friday
Cheap flight deals from Washington, D.C. to Oslo
Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to Oslo (OS1). 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 June 14, 2025.
Round-trip from | $428 (Mytrip) |
|---|---|
One-way from | $224 (FlightHub) |
Popular in | December |
Cheapest in | February |
Average price | $742 |
Find flight deals from Washington, D.C. to Oslo
Cheapest flights from Washington, D.C. to OsloExplore the most affordable flight options available from Washington, D.C. to Oslo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 14, 2025.
Explore the most affordable flight options available from Washington, D.C. to Oslo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 14, 2025.
This Mytrip deal was found by Cheapflights users on 6/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This oojo deal was found by Cheapflights users on 6/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This oojo deal was found by Cheapflights users on 6/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Finnair deal was found by Cheapflights users on 6/12. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Booking.com deal was found by Cheapflights users on 6/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Finnair deal was found by Cheapflights users on 6/12. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Cheapflightsfares deal was found by Cheapflights users on 6/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This British Airways deal was found by Cheapflights users on 6/13. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Booking.com deal was found by Cheapflights users on 6/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Iberia deal was found by Cheapflights users on 6/12. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 6/10. 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.
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Cheapflights Fare Finder
Customize your flight search to find flights from Washington, D.C. to Oslo 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 June 14, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Oslo that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
BaltimoreOslo
BWI - OSL
BWIOSL
Baltimore/Washington
Mon 12/1
7:30 pm-11:35 am
1 stop10h 05m
Oslo Gardermoen
Tue 12/9
1:05 pm-6:30 pm
1 stop11h 25m
Washington, D.C.Oslo
IAD - OSL
IADOSL
Washington, D.C. Dulles Intl
Tue 8/19
12:13 pm-12:55 pm
2 stops18h 42m
Oslo Gardermoen
Tue 8/26
1:35 pm-7:59 pm
1 stop12h 24m
Washington, D.C.Oslo
IAD - OSL
IADOSL
Washington, D.C. Dulles Intl
Thu 8/28
11:15 pm-3:25 pm
1 stop10h 10m
Oslo Gardermoen
Fri 9/12
4:30 pm-10:10 pm
1 stop11h 40m
Washington, D.C.Oslo
IAD - OSL
IADOSL
Washington, D.C. Dulles Intl
Mon 12/1
6:15 pm-10:40 pm
1 stop22h 25m
Oslo Gardermoen
Thu 12/11
12:25 pm-3:35 pm
2 stops33h 10m
BaltimoreOslo
BWI - OSL
BWIOSL
Baltimore/Washington
Mon 12/1
6:05 pm-6:35 pm
2 stops18h 30m
Oslo Gardermoen
Tue 12/9
7:15 am-6:45 pm
1 stop17h 30m
Washington, D.C.Oslo
IAD - OSL
IADOSL
Washington, D.C. Dulles Intl
Mon 12/1
6:15 pm-8:00 am
2 stops31h 45m
Oslo Gardermoen
Thu 12/11
12:25 pm-3:35 pm
2 stops33h 10m
Washington, D.C.Oslo
IAD - TRF
IADTRF
Washington, D.C. Dulles Intl
Wed 9/3
10:05 pm-2:20 pm
1 stop10h 15m
Oslo Sandefjord
Mon 9/8
2:55 pm-7:59 pm
1 stop11h 04m
Washington, D.C.Oslo
IAD - OSL
IADOSL
Washington, D.C. Dulles Intl
Wed 12/10
6:15 pm-2:15 pm
1 stop14h 00m
Oslo Gardermoen
Sun 12/21
7:15 am-3:35 pm
1 stop14h 20m
Washington, D.C.Oslo
IAD - OSL
IADOSL
Washington, D.C. Dulles Intl
Tue 11/25
6:00 pm-2:20 pm
1 stop14h 20m
Oslo Gardermoen
Mon 12/1
3:00 pm-4:30 pm
1 stop31h 30m
Washington, D.C.Oslo
DCA - OSL
DCAOSL
Washington, D.C. Reagan-National
Fri 11/28
5:58 pm-4:25 pm
2 stops16h 27m
Oslo Gardermoen
Mon 12/8
12:25 pm-10:38 pm
2 stops16h 13m
Best time to book a flight from Washington, D.C. to Oslo
Have a flexible travel schedule? Discover the best time to fly to Oslo from Washington, D.C. with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Washington, D.C. to Oslo
How far ahead should I book a flight from Washington, D.C. to Oslo?
Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Oslo. Price data was last updated on June 9, 2025.
The price you pay for your flight from Washington, D.C. to Oslo may vary depending on when you book. For the best chance of a lower fare, look to book 76 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Washington, D.C. to Oslo?
Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to Oslo (average of $567). Flying from Washington, D.C. to Oslo in June is currently the most expensive (average of $1,004). 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 WAS to OSL?
Find hourly flight availability from Washington, D.C. to Oslo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 14, 2025.
It’s typically best to fly out from Washington, D.C. to Oslo in the morning. Doing so could potentially save you 38% on the flight price compared to flying at noon, which is usually more expensive.
Rainfall in Oslo by month
Plan your trip to Oslo by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Oslo ranges from 1.6 - 3.5 inches per month. August is typically the wettest month, when rainfall can reach 3.5 in. February is typically the driest time to visit Oslo when rainfall is around 1.6 in.
Temperature in Oslo by month
Plan your trip to Oslo by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Oslo, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.6 F).
Reviews of airlines servicing Oslo
Get insights into the airlines that provide service to Oslo. 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 Oslo. Reviews last updated June 14, 2025.
To help decide which airline to fly from Washington, D.C. to Oslo, see what other customers have to say about Delta, KLM and Finnair. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
Crew
Overall
Boarding
Food
Entertainment
Reviews
Kim,May 2025
PIH - SLC
Comfort
Crew
Overall
Boarding
Food
Entertainment
Reviews
Kim,May 2025
PIH - SLC
Comfort
Crew
Overall
Boarding
Food
Entertainment
Reviews
Kim,May 2025
PIH - SLC
Comfort
Crew
Overall
Boarding
Food
Entertainment
Reviews
Kim,May 2025
PIH - SLC
Comfort
Crew
Overall
Boarding
Food
Entertainment
Reviews
Kim,May 2025
PIH - SLC
Comfort
Crew
Overall
Boarding
Food
Entertainment
Reviews
Kim,May 2025
PIH - SLC
Related info for your journey
Find useful and relevant information for your journey from Washington, D.C. to Oslo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Washington, D.C. to Oslo
See prices for flight routes from nearby airports that may be better suited for you.
Top 8 airlines flying from Washington, D.C. to Oslo
Discover the top 8 airlines that operate flights from Washington, D.C. to Oslo. 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 June 14, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$391 | Average$610 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$400 | Average$708 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$501 | Average$589 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$512 | Average$728 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$531 | Average$739 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$535 | Average$720 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$542 | Average$720 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$566 | Average$616 | FlexibilityNo cancel fee | On-time77% |