$464 Cheap Flights from Boise (BOI) to Oslo (OSL)

View $464 flight on Tue, Aug 19, 2025Opens in a new window

Popular airlines from Boise Airport (BOI) to Gardermoen Airport (OSL)

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Cheap Flights from Boise to Oslo (BOI-OSL)

Prices were available within the past 7 days and start at $464 for one-way flights and $610 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Apr 1 - Wed, Apr 15
BOI
Boise
OSL
Oslo
$610 Roundtrip, found 3 hours ago
$610
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Wed, Apr 1 from Boise to Oslo, returning Wed, Apr 15, priced at $610 found 3 hours ago
American Airlines
Wed, Feb 18 - Wed, Feb 25
BOI
Boise
OSL
Oslo
$624 Roundtrip, found 6 hours ago
$624
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Wed, Feb 18 from Boise to Oslo, returning Wed, Feb 25, priced at $624 found 6 hours ago
American Airlines
Wed, Feb 18 - Wed, Feb 25
BOI
Boise
OSL
Oslo
$626 Roundtrip, found 6 hours ago
$626
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Wed, Feb 18 from Boise to Oslo, returning Wed, Feb 25, priced at $626 found 6 hours ago
United
Wed, Apr 1 - Wed, Apr 15
BOI
Boise
OSL
Oslo
$628 Roundtrip, found 3 hours ago
$628
Roundtrip
found 3 hours ago
Select United flight, departing Wed, Apr 1 from Boise to Oslo, returning Wed, Apr 15, priced at $628 found 3 hours ago
United
Wed, Apr 1 - Wed, Apr 15
BOI
Boise
OSL
Oslo
$632 Roundtrip, found 3 hours ago
$632
Roundtrip
found 3 hours ago
Select United flight, departing Wed, Apr 1 from Boise to Oslo, returning Wed, Apr 15, priced at $632 found 3 hours ago
United
Wed, Apr 1 - Wed, Apr 15
BOI
Boise
OSL
Oslo
$632 Roundtrip, found 3 hours ago
$632
Roundtrip
found 3 hours ago
Select United flight, departing Wed, Apr 1 from Boise to Oslo, returning Wed, Apr 15, priced at $632 found 3 hours ago
Scandinavian Airlines
Tue, Sep 16 - Wed, Oct 15
BOI
Boise
OSL
Oslo
$632 Roundtrip, found 4 hours ago
$632
Roundtrip
found 4 hours ago
Select Scandinavian Airlines flight, departing Tue, Sep 16 from Boise to Oslo, returning Wed, Oct 15, priced at $632 found 4 hours ago
United
Wed, Apr 1 - Wed, Apr 15
BOI
Boise
OSL
Oslo
$639 Roundtrip, found 3 hours ago
$639
Roundtrip
found 3 hours ago
Select United flight, departing Wed, Apr 1 from Boise to Oslo, returning Wed, Apr 15, priced at $639 found 3 hours ago
Delta
Wed, Feb 18 - Wed, Feb 25
BOI
Boise
OSL
Oslo
$641 Roundtrip, found 6 hours ago
$641
Roundtrip
found 6 hours ago
Select Delta flight, departing Wed, Feb 18 from Boise to Oslo, returning Wed, Feb 25, priced at $641 found 6 hours ago
Lufthansa
Wed, Feb 18 - Wed, Feb 25
BOI
Boise
OSL
Oslo
$649 Roundtrip, found 6 hours ago
$649
Roundtrip
found 6 hours ago
Select Lufthansa flight, departing Wed, Feb 18 from Boise to Oslo, returning Wed, Feb 25, priced at $649 found 6 hours ago
Flights from Boise (BOI) to Oslo (OSL)
Origin airport
Boise
Destination airport
Gardermoen
Airlines serving
Air France, American Airlines, British Airways, Delta, Finnair, Iberia, Icelandair, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, United, Virgin Atlantic
Roundtrip price
$610
Distance
4676 mi

Boise to Oslo Flights

The cheapest times to fly from Boise to Oslo

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Boise to Oslo are during the month of April. You can find some of the cheapest flights from Boise to Oslo with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Boise to Oslo

Sunday is one of the best days to book for cheap flights from Boise to Oslo: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Boise to Oslo

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Boise to Oslo in 2025. You can also book with separate airlines for your outbound and return journeys, from $464 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Boise to Oslo flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Boise to Oslo airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Boise Airport (BOI) to Gardermoen Airport (OSL) cost?
Lock in a cheap one-way flight from $464 or cheap return flight from $610 from Boise Airport (BOI) to Gardermoen Airport (OSL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Boise Airport (BOI) to Gardermoen Airport (OSL)?
Traveling in April can help you save, as it's the cheapest month for flights between BOI and OSL. You'll usually find the lowest prices during the off-season.
What is the cheapest airline that flies from Boise Airport (BOI) to Gardermoen Airport (OSL)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest BOI to OSL flight.
How many flights per day from Boise Airport (BOI) to Gardermoen Airport (OSL)?
You'll need to book a flight with a layover if you're traveling from Boise Airport (BOI) to Gardermoen Airport (OSL). There are no daily direct flights on this route. However, just filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from BOI to OSL?
Usually you'll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* However, this can vary based on the airline, season and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Boise Airport (BOI) to Gardermoen Airport (OSL)?
To avoid potential delays on the Boise Airport (BOI) to Gardermoen Airport (OSL) route, aim to travel before 3 PM. Flights after this time have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Boise Airport (BOI) to Gardermoen Airport (OSL) last-minute?
Booking your flight from BOI to OSL right before your journey is typically more expensive. However, if you're flexible with your schedule, you could bag a cheap last-minute fare.
Is it cheaper to book a BOI to OSL flight and hotel package?
Opting for a BOI to OSL flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Select from our extensive range of accommodations and then add activities, car rentals and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Boise Airport (BOI) to Gardermoen Airport (OSL)?
Typically, you can reschedule or cancel your BOI to OSL flight. However, additional charges may apply, especially if you booked more than 24 hours ago. Double-check your itinerary for the airline's policies and fees on flight changes, or if you need further details, go to our Customer Service portal.

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*Available to One Key members.