$706 Cheap Flights from Oslo (OSL) to Boise (BOI)

View $706 flight on Tue, Dec 16, 2025Opens in a new window

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

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Cheap Flights from Oslo to Boise (OSL-BOI)

Prices were available within the past 7 days and start at $706 for one-way flights and $627 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Wed, Nov 12 - Sat, Dec 6
OSL
Oslo
BOI
Boise
$627 Roundtrip, found 4 days ago
$627
Roundtrip
found 4 days ago
Select Lufthansa flight, departing Wed, Nov 12 from Oslo to Boise, returning Sat, Dec 6, priced at $627 found 4 days ago
American Airlines
Mon, May 18 - Thu, Jun 4
OSL
Oslo
BOI
Boise
$672 Roundtrip, found 5 days ago
$672
Roundtrip
found 5 days ago
Select American Airlines flight, departing Mon, May 18 from Oslo to Boise, returning Thu, Jun 4, priced at $672 found 5 days ago
American Airlines
Mon, May 18 - Thu, Jun 4
OSL
Oslo
BOI
Boise
$675 Roundtrip, found 5 days ago
$675
Roundtrip
found 5 days ago
Select American Airlines flight, departing Mon, May 18 from Oslo to Boise, returning Thu, Jun 4, priced at $675 found 5 days ago
American Airlines
Sun, May 17 - Mon, Jun 1
OSL
Oslo
BOI
Boise
$677 Roundtrip, found 6 days ago
$677
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sun, May 17 from Oslo to Boise, returning Mon, Jun 1, priced at $677 found 6 days ago
American Airlines
Sun, May 17 - Mon, Jun 1
OSL
Oslo
BOI
Boise
$681 Roundtrip, found 6 days ago
$681
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sun, May 17 from Oslo to Boise, returning Mon, Jun 1, priced at $681 found 6 days ago
Iberia
Wed, Nov 12 - Sat, Dec 6
OSL
Oslo
BOI
Boise
$686 Roundtrip, found 4 days ago
$686
Roundtrip
found 4 days ago
Select Iberia flight, departing Wed, Nov 12 from Oslo to Boise, returning Sat, Dec 6, priced at $686 found 4 days ago
Delta
Sun, May 17 - Mon, Jun 1
OSL
Oslo
BOI
Boise
$700 Roundtrip, found 6 days ago
$700
Roundtrip
found 6 days ago
Select Delta flight, departing Sun, May 17 from Oslo to Boise, returning Mon, Jun 1, priced at $700 found 6 days ago
British Airways
Mon, May 18 - Thu, Jun 4
OSL
Oslo
BOI
Boise
$707 Roundtrip, found 5 days ago
$707
Roundtrip
found 5 days ago
Select British Airways flight, departing Mon, May 18 from Oslo to Boise, returning Thu, Jun 4, priced at $707 found 5 days ago
American Airlines
Mon, May 18 - Thu, Jun 4
OSL
Oslo
BOI
Boise
$728 Roundtrip, found 5 days ago
$728
Roundtrip
found 5 days ago
Select American Airlines flight, departing Mon, May 18 from Oslo to Boise, returning Thu, Jun 4, priced at $728 found 5 days ago
American Airlines
Mon, May 18 - Thu, Jun 4
OSL
Oslo
BOI
Boise
$730 Roundtrip, found 5 days ago
$730
Roundtrip
found 5 days ago
Select American Airlines flight, departing Mon, May 18 from Oslo to Boise, returning Thu, Jun 4, priced at $730 found 5 days ago
Flights from Oslo (OSL) to Boise (BOI)
Origin airport
Gardermoen
Destination airport
Boise
Roundtrip price
$626
Distance
4676 mi

Oslo to Boise Flights

The cheapest times to fly from Oslo to Boise

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 Oslo to Boise are during the month of November. You can find some of the cheapest flights from Oslo to Boise with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Oslo to Boise

Sunday is one of the best days to book for cheap flights from Oslo to Boise: 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 Oslo to Boise

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 Oslo to Boise in 2025. You can also book with separate airlines for your outbound and return journeys, from $706 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 Oslo to Boise 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 Oslo to Boise 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 Gardermoen Airport (OSL) to Boise Airport (BOI) cost?
Get a cheap one-way flight from $706 or cheap return flight from $627 from Gardermoen Airport (OSL) to Boise Airport (BOI) 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 Gardermoen Airport (OSL) to Boise Airport (BOI)?
November is the cheapest month to fly from OSL to BOI. Avoiding peak travel times is often the key to better flight prices.
What is the cheapest airline that flies from Gardermoen Airport (OSL) to Boise Airport (BOI)?
Use the filters on Expedia to compare different airlines and find the cheapest carrier that'll take you from OSL to BOI. Then, sort your results by "Price (lowest to highest)" to score a great deal.
How many flights per day from Gardermoen Airport (OSL) to Boise Airport (BOI)?
You'll have to take a flight with a layover when traveling from Gardermoen Airport (OSL) to Boise Airport (BOI). Direct flights don't operate daily on this route. However, just filter your search to include one or more stops to discover the best option for your trip.
What day of the week has the most flights from OSL to BOI?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can change based on a number of factors, such as the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Gardermoen Airport (OSL) to Boise Airport (BOI)?
To reach Boise Airport (BOI) without delays, select a flight that takes off from Gardermoen Airport (OSL) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 Gardermoen Airport (OSL) to Boise Airport (BOI) last-minute?
Holding off until just before your departure to book your flight from OSL to BOI often results in higher prices. While you might find some last-minute deals, they're not always guaranteed. Keep your travel schedule open for the best chance of snagging a bargain.
Is it cheaper to book an OSL to BOI flight and hotel package?
Opting for an OSL to BOI flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Pick from our impressive range of accommodations and then add activities, flights and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Gardermoen Airport (OSL) to Boise Airport (BOI)?
If you reserved your OSL to BOI flight within the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more details.

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*Available to One Key members.