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Cheap flights from Austin to Belfast from $918

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Austin to Belfast departing on 3/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:00 am - 1:45 pm
AUS
-
BFS
26h 45m3 stops
Multiple Airlines Logo
6:30 am - 12:15 pm
BFS
-
AUS
34h 45m3 stops
$918Multiple Airlines
Wed, Mar 18 - Fri, Mar 20

momondo Fare Finder

 
Customize your flight search to find flights from Austin to Belfast Intl Airport 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, momondo users made 832,500 searches. Data last updated January 8, 2026.
Use the filters below to find and compare flights from Austin to Belfast Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

AustinBelfast

AUS - BFS

AUSBFS

Austin Bergstrom

Wed 3/18

6:00 am-1:45 pm

3 stops26h 45m

Belfast Intl

Fri 3/20

6:30 am-12:15 pm

3 stops34h 45m

$918

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Austin to Belfast Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Austin to Belfast Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Austin to Belfast Intl Airport (AUS to BFS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Austin to Belfast Intl Airport

Fastest flight time

14h 45m

Direct flights

None
The fastest flight from Austin to Belfast Intl Airport takes 14h 45m
There are no direct flights from Austin to Belfast Intl Airport. There are no popular flight routes from Austin to Belfast Intl Airport.
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  • How far is Austin Bergstrom to Belfast Intl by plane?

    A flight from Austin Bergstrom to Belfast Intl will travel around 4594.9 mi. A reasonable flight in good conditions will take 14h 45m.

  • When did momondo last update prices for flights from Austin Bergstrom Airport to Belfast Intl Airport?

    Prices for flights from Austin Bergstrom Airport to Belfast Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Austin Bergstrom Airport to Belfast Intl Airport?

  • How old do you have to be to fly from Austin Bergstrom Airport to Belfast Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Austin Bergstrom Airport to Belfast Intl Airport.

  • What documentation or ID do you need to fly to Belfast Intl Airport?

    The necessary travel and health documents for your Belfast Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Austin to Belfast Intl Airport?

Best airlines flying from Austin to Belfast Intl Airport

Compare and see reviews for airlines that fly from Austin to Belfast Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $759Free CancellationRating
6.7
7,657 reviews
Search British Airways flights

  • How do I get Price Alerts for flights from Austin to Belfast Intl Airport?

    Price Alerts will notify you by email when the price for flights to Belfast Intl Airport from Austin decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Austin to Belfast Intl Airport with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Traveling to a place near Belfast?

Book flights to Belfast if you plan to visit one of these locations
Armagh
Cookstown
Newry
Dungannon

Why use momondo?

Why should I use momondo to find a flight deal from Austin to Belfast?

It is quick and easy to find Austin to Belfast flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Belfast that suits you.

Can I find flights from Austin to Belfast with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Austin to Belfast flights to just show those with flexible booking policies.

How can momondo help me find flights from Austin to Belfast?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Belfast from Austin.

I’m not ready to book a flight from Austin to Belfast right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Belfast from Austin. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Belfast Intl Airport trip

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