$421 Cheap Flights from Austin (AUS) to Trondheim (TRD)

View $421 flight on Mon, Jun 29, 2026Opens in a new window

Popular airlines from Austin-Bergstrom Intl. Airport (AUS) to Vaernes Airport (TRD)

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Cheap Flights from Austin to Trondheim (AUS-TRD)

Prices were available within the past 7 days and start at $421 for one-way flights and $537 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Mar 3 - Mon, Mar 16
AUS
Austin
TRD
Trondheim
$537 Roundtrip, found 3 days ago
$537
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Mar 3 from Austin to Trondheim, returning Mon, Mar 16, priced at $537 found 3 days ago
Delta
Mon, Mar 30 - Tue, Apr 14
AUS
Austin
TRD
Trondheim
$545 Roundtrip, found 3 days ago
$545
Roundtrip
found 3 days ago
Select Delta flight, departing Mon, Mar 30 from Austin to Trondheim, returning Tue, Apr 14, priced at $545 found 3 days ago
Delta
Wed, Apr 1 - Tue, Apr 14
AUS
Austin
TRD
Trondheim
$563 Roundtrip, found 3 days ago
$563
Roundtrip
found 3 days ago
Select Delta flight, departing Wed, Apr 1 from Austin to Trondheim, returning Tue, Apr 14, priced at $563 found 3 days ago
Delta
Tue, Mar 3 - Tue, Mar 17
AUS
Austin
TRD
Trondheim
$565 Roundtrip, found 3 days ago
$565
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Mar 3 from Austin to Trondheim, returning Tue, Mar 17, priced at $565 found 3 days ago
Delta
Wed, Mar 25 - Wed, Apr 8
AUS
Austin
TRD
Trondheim
$572 Roundtrip, found 3 days ago
$572
Roundtrip
found 3 days ago
Select Delta flight, departing Wed, Mar 25 from Austin to Trondheim, returning Wed, Apr 8, priced at $572 found 3 days ago
Delta
Mon, Mar 30 - Wed, Apr 15
AUS
Austin
TRD
Trondheim
$573 Roundtrip, found 3 days ago
$573
Roundtrip
found 3 days ago
Select Delta flight, departing Mon, Mar 30 from Austin to Trondheim, returning Wed, Apr 15, priced at $573 found 3 days ago
Air France
Wed, Mar 4 - Mon, Mar 16
AUS
Austin
TRD
Trondheim
$593 Roundtrip, found 3 days ago
$593
Roundtrip
found 3 days ago
Select Air France flight, departing Wed, Mar 4 from Austin to Trondheim, returning Mon, Mar 16, priced at $593 found 3 days ago
KLM
Mon, Mar 23 - Tue, Apr 7
AUS
Austin
TRD
Trondheim
$611 Roundtrip, found 3 days ago
$611
Roundtrip
found 3 days ago
Select KLM flight, departing Mon, Mar 23 from Austin to Trondheim, returning Tue, Apr 7, priced at $611 found 3 days ago
Scandinavian Airlines
Tue, Sep 8 - Wed, Sep 23
AUS
Austin
TRD
Trondheim
$911 Roundtrip, found 6 days ago
$911
Roundtrip
found 6 days ago
Select Scandinavian Airlines flight, departing Tue, Sep 8 from Austin to Trondheim, returning Wed, Sep 23, priced at $911 found 6 days ago
Finnair
Sat, Sep 12 - Tue, Sep 15
AUS
Austin
TRD
Trondheim
$924 Roundtrip, found 14 hours ago
$924
Roundtrip
found 14 hours ago
Select Finnair flight, departing Sat, Sep 12 from Austin to Trondheim, returning Tue, Sep 15, priced at $924 found 14 hours ago

Alternative airports near Trondheim

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Vaernes TRD. Cheapest and Closest option available. Average driving time to city center is 29 minutes. Flights from $698
TRD
Vaernes
CheapestClosest
Average driving time to city center29 min
Flights from $698

Find the cheapest month to fly from Austin (AUS) to Trondheim (TRD)

September is typically the cheapest month to fly

From $487 - $1,143 per traveler.
Flights from Austin (AUS) to Trondheim (TRD)
Origin airport
Austin-Bergstrom Intl.
Destination airport
Vaernes
Airlines serving
Finnair, Scandinavian Airlines
Roundtrip price
$537
Distance
4899 mi

Austin to Trondheim Flights

The cheapest times to fly from Austin to Trondheim

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

 

The best time to book a flight from Austin to Trondheim

Sunday is one of the best days to book for cheap flights from Austin to Trondheim: 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 Austin to Trondheim

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 Austin to Trondheim in 2026. You can also book with separate airlines for your outbound and return journeys, from $421 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 Austin to Trondheim 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 Austin to Trondheim 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 Austin, TX (AUS-Austin-Bergstrom Intl.) to Trondheim (TRD-Vaernes) cost?
You can find cheap one-way flights from $421 and cheap return flights from $537 AUS to TRD with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when AUS to TRD ticket fares go up or down.
What is the cheapest month to fly from Austin, TX (AUS-Austin-Bergstrom Intl.) to Trondheim (TRD-Vaernes)?
The cheapest month to fly from AUS to TRD is March when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Austin, TX (AUS-Austin-Bergstrom Intl.) to Trondheim (TRD-Vaernes)?
Enter AUS to TRD and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Austin, TX (AUS-Austin-Bergstrom Intl.) to Trondheim (TRD-Vaernes)?
SAS, Delta and Lufthansa are just some of the carriers that fly from Austin, TX (AUS) to Trondheim (TRD). Use Expedia's flight search tool to compare airlines on this route and find our cheapest option for your trip. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Austin, TX (AUS-Austin-Bergstrom Intl.) to Trondheim (TRD-Vaernes)?
To find a cheap flight from Austin, TX (AUS-Austin-Bergstrom Intl.) to Trondheim (TRD-Vaernes), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Austin, TX (AUS-Austin-Bergstrom Intl.) to Trondheim (TRD-Vaernes)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Austin, TX (AUS-Austin-Bergstrom Intl.) to Trondheim (TRD-Vaernes)?
The earliest flight from Austin (AUS-Austin-Bergstrom Intl.) to Trondheim (TRD-Vaernes) typically leaves at around 7:20 AM, operated by Delta and WX. This service is seasonal, available in June, making it a great option if you're planning a summer trip. An early departure like this allows you to make the most of your day upon arrival. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Austin, TX (AUS-Austin-Bergstrom Intl.) to Trondheim (TRD-Vaernes)?
The busiest day for flights from Austin-Bergstrom Intl. (AUS) to Vaernes (TRD) is a Saturday, with around 1 flights. This gives you plenty of options for your travel plans.
What are the most popular departure times for flights from Austin, TX (AUS-Austin-Bergstrom Intl.) to Trondheim (TRD-Vaernes)?
The most popular departure times for flights from Austin (AUS) to Trondheim (TRD) are in the evening, from 6pm to 9pm. About 100% of passengers prefer this time window. KLM and Delta offer flights during this window. This timing is favored because it allows you to travel after a full day in Austin.
How long does it take to fly from Austin, TX (AUS-Austin-Bergstrom Intl.) to Trondheim (TRD-Vaernes)?
Flying from AUS to TRD with a connection usually takes about 15 hours 30 minutes, traveling roughly 4,900 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Austin, TX (AUS-Austin-Bergstrom Intl.) to Trondheim (TRD-Vaernes)?
Business class seats are offered on the AUS to TRD route with KLM.
How do I earn miles on a Austin, TX (AUS-Austin-Bergstrom Intl.) to Trondheim (TRD-Vaernes) flight with Expedia?
It's easy to earn miles on a Austin, TX (AUS-Austin-Bergstrom Intl.) to Trondheim (TRD-Vaernes) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Trondheim from Austin-Bergstrom Intl. (AUS)?
If you're planning to travel to Trondheim from Austin-Bergstrom Intl. (AUS), you can fly into Vaernes (TRD) Some flights may connect through major hubs like Minneapolis - St. Paul Intl. (MSP), John F. Kennedy Intl. (JFK), Schiphol (AMS) before reaching Trondheim. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Austin, TX (AUS-Austin-Bergstrom Intl.) to Trondheim (TRD-Vaernes) at the last minute?
Typically, booking a last minute flight from Austin, TX (AUS-Austin-Bergstrom Intl.) to Trondheim (TRD-Vaernes) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Austin, TX (AUS-Austin-Bergstrom Intl.) to Trondheim (TRD-Vaernes) flight and hotel package?
Securing a Austin, TX (AUS-Austin-Bergstrom Intl.) to Trondheim (TRD-Vaernes) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities 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 Austin, TX (AUS-Austin-Bergstrom Intl.) to Trondheim (TRD-Vaernes)?
If you booked your Austin, TX (AUS-Austin-Bergstrom Intl.) to Trondheim (TRD-Vaernes) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

*Flight schedules are subject to change.

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