$273+ Cheap flights from Oslo to Washington, D.C. (WAS)
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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Oslo to Washington, D.C. 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 Oslo to Washington, D.C. are usually found in September or February, booked 42 days in advance, depart on a Friday or Wednesday and return on a Thursday
Cheap flight deals from Oslo to Washington, D.C.
Discover tips and strategies to find the most affordable flight options for your journey from Oslo (OS1) to Washington, D.C. (WAS). 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 abril 30, 2025.
Round-trip from | $403 (Ticket) |
|---|---|
One-way from | $273 (oojo) |
Popular in | July |
Cheapest in | September |
Average price | $555 |
Find flight deals from Oslo to Washington, D.C.
Cheapest flights from Oslo to Washington, D.C.Explore the most affordable flight options available from Oslo to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on abril 30, 2025.
Explore the most affordable flight options available from Oslo to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on abril 30, 2025.
This Ticket deal was found by Cheapflights users on 4/28. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Ticket deal was found by Cheapflights users on 4/28. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Ticket deal was found by Cheapflights users on 4/29. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Mytrip deal was found by Cheapflights users on 4/29. 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 Mytrip 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 4/28. 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 American Airlines 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 4/28. 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.
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Flightnetwork deal was found by Cheapflights users on 4/28. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 4/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Travelis deal was found by Cheapflights users on 4/29. 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 Travelis 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 Oslo to Washington, D.C. 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 abril 30, 2025.
Use the filters below to find and compare flights from Oslo to Washington, D.C. that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
OsloBaltimore
OSL - BWI
OSLBWI
Oslo Gardermoen
vie. 5/9
4:20 pm-7:25 pm
1 stop33h 05m
Baltimore/Washington
dom. 5/25
8:30 pm-12:35 pm
1 stop10h 05m
OsloBaltimore
OSL - BWI
OSLBWI
Oslo Gardermoen
dom. 5/11
7:45 am-7:35 pm
1 stop17h 50m
Baltimore/Washington
mar. 5/27
9:20 pm-11:25 pm
1 stop20h 05m
OsloBaltimore
OSL - BWI
OSLBWI
Oslo Gardermoen
dom. 5/11
7:45 am-7:35 pm
1 stop17h 50m
Baltimore/Washington
mar. 5/27
9:20 pm-11:25 pm
1 stop20h 05m
OsloWashington, D.C.
OSL - IAD
OSLIAD
Oslo Gardermoen
vie. 5/23
4:30 pm-10:10 pm
1 stop11h 40m
Washington, D.C. Dulles Intl
lun. 5/26
8:30 pm-12:35 pm
1 stop10h 05m
OsloWashington, D.C.
OSL - DCA
OSLDCA
Oslo Gardermoen
dom. 5/11
7:45 am-10:36 pm
2 stops20h 51m
Washington, D.C. Reagan-National
mar. 5/27
3:54 pm-11:25 pm
2 stops25h 31m
OsloWashington, D.C.
OSL - IAD
OSLIAD
Oslo Gardermoen
dom. 5/11
7:45 am-8:10 pm
1 stop18h 25m
Washington, D.C. Dulles Intl
mar. 5/27
10:40 pm-11:25 pm
1 stop18h 45m
OsloWashington, D.C.
OSL - IAD
OSLIAD
Oslo Gardermoen
dom. 5/11
7:45 am-8:10 pm
1 stop18h 25m
Washington, D.C. Dulles Intl
mar. 5/27
10:40 pm-11:25 pm
1 stop18h 45m
OsloWashington, D.C.
OSL - IAD
OSLIAD
Oslo Gardermoen
vie. 5/23
6:30 am-7:42 pm
2 stops19h 12m
Washington, D.C. Dulles Intl
lun. 5/26
9:20 pm-4:40 pm
1 stop13h 20m
OsloWashington, D.C.
OSL - IAD
OSLIAD
Oslo Gardermoen
mié. 5/14
7:40 am-7:32 pm
2 stops17h 52m
Washington, D.C. Dulles Intl
dom. 5/18
10:40 pm-11:40 pm
1 stop19h 00m
OsloWashington, D.C.
OSL - DCA
OSLDCA
Oslo Gardermoen
vie. 5/9
11:50 am-11:44 pm
2 stops17h 54m
Washington, D.C. Reagan-National
dom. 5/25
12:45 pm-11:05 am
2 stops16h 20m
Best time to book a flight from Oslo to Washington, D.C.
Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Oslo with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Oslo to Washington, D.C.
How far ahead should I book a flight from Oslo to Washington, D.C.?
Use this chart to determine the optimal time to book a round-trip flight from Oslo to Washington, D.C.. Price data was last updated on April 25, 2025.
The price you pay for your flight from Oslo to Washington, D.C. may vary depending on when you book. For the best chance of a lower fare, look to book 42 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 Oslo to Washington, D.C.?
Currently, August is the cheapest month in which you can book a flight from Oslo to Washington, D.C. (average of $309). Flying from Oslo to Washington, D.C. in June is currently the most expensive (average of $373). 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 OSL to WAS?
Find hourly flight availability from Oslo to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated abril 30, 2025.
It’s optimal to fly from Oslo to Washington, D.C. in the evening. By choosing this option you can save up to 28% on the cost of your flight, compared to a flight in the afternoon.
Rainfall in Washington, D.C. by month
Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.
Temperature in Washington, D.C. by month
Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Washington, D.C., 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).
Reviews of airlines servicing Washington, D.C.
Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated abril 30, 2025.
Get a feel of what it's like to fly with Delta, KLM and LOT from Oslo to Washington, D.C. by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
Comfort
Food
Entertainment
Crew
Overall
Reviews
Aaron,Oct 2024
TUS - LAX
Boarding
Comfort
Food
Entertainment
Crew
Overall
Reviews
Aaron,Oct 2024
TUS - LAX
Boarding
Comfort
Food
Entertainment
Crew
Overall
Reviews
Aaron,Oct 2024
TUS - LAX
Boarding
Comfort
Food
Entertainment
Crew
Overall
Reviews
Aaron,Oct 2024
TUS - LAX
Boarding
Comfort
Food
Entertainment
Crew
Overall
Reviews
Aaron,Oct 2024
TUS - LAX
Boarding
Comfort
Food
Entertainment
Crew
Overall
Reviews
Aaron,Oct 2024
TUS - LAX
Related info for your journey
Find useful and relevant information for your journey from Oslo to Washington, D.C.. 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 Oslo to Washington, D.C.
See prices for flight routes from nearby airports that may be better suited for you.
Top 5 airlines flying from Oslo to Washington, D.C.
Discover the top 5 airlines that operate flights from Oslo to Washington, D.C.. 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 abril 30, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$319 | Average$535 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$354 | Average$578 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$407 | Average$587 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$448 | Average$535 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$459 | Average$651 | FlexibilityNo cancel fee | On-time69% |