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Cheap flights from Austin to Belfast from $1,183

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 9/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Austin to Belfast

Cheap round-trip flights

Logo
12:02 pm - 4:00 pmAUS-BFS
21h 58m2 stops
Logo
6:05 am - 7:55 pmBFS-AUS
43h 50m3 stops
$1,183
Find Deal
Fri, Sep 12 - Fri, Sep 19
Logo
12:02 pm - 8:05 pmAUS-BFS
26h 03m3 stops
Logo
6:05 am - 7:55 pmBFS-AUS
43h 50m3 stops
$1,187
Find Deal
Fri, Sep 12 - Fri, Sep 19
Logo
4:36 pm - 2:30 pmAUS-BFS
39h 54m2 stops
Logo
2:00 pm - 3:50 pmBFS-AUS
31h 50m1 stop
$1,344
Find Deal
Wed, Aug 13 - Sat, Aug 16
Logo
4:05 pm - 10:25 pmAUS-BFS
24h 20m2 stops
Logo
4:15 pm - 8:12 pmBFS-AUS
33h 57m3 stops
$1,650
Find Deal
Wed, Aug 13 - Sat, Aug 16
Logo
10:00 am - 10:25 pmAUS-BFS
30h 25m3 stops
Logo
4:15 pm - 8:12 pmBFS-AUS
33h 57m3 stops
$1,663
Find Deal
Wed, Aug 13 - Sat, Aug 16
Logo
10:20 pm - 10:00 amAUS-BFS
29h 40m1 stop
Logo
2:00 pm - 3:50 pmBFS-AUS
31h 50m1 stop
$1,686
Find Deal
Wed, Aug 13 - Sat, Aug 16

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 July 31, 2025.
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

Fri 9/12

12:02 pm-4:00 pm

2 stops21h 58m

Belfast Intl

Fri 9/19

6:05 am-7:55 pm

3 stops43h 50m

$1,183

AustinBelfast

AUS - BFS

AUSBFS

Austin Bergstrom

Fri 9/12

12:02 pm-8:05 pm

3 stops26h 03m

Belfast Intl

Fri 9/19

6:05 am-7:55 pm

3 stops43h 50m

$1,187

AustinBelfast

AUS - BFS

AUSBFS

Austin Bergstrom

Wed 8/13

4:36 pm-2:30 pm

2 stops39h 54m

Belfast Intl

Sat 8/16

2:00 pm-3:50 pm

1 stop31h 50m

$1,344

AustinBelfast

AUS - BFS

AUSBFS

Austin Bergstrom

Wed 8/13

4:05 pm-10:25 pm

2 stops24h 20m

Belfast Intl

Sat 8/16

4:15 pm-8:12 pm

3 stops33h 57m

$1,650

AustinBelfast

AUS - BFS

AUSBFS

Austin Bergstrom

Wed 8/13

10:00 am-10:25 pm

3 stops30h 25m

Belfast Intl

Sat 8/16

4:15 pm-8:12 pm

3 stops33h 57m

$1,663

AustinBelfast

AUS - BFS

AUSBFS

Austin Bergstrom

Wed 8/13

10:20 pm-10:00 am

1 stop29h 40m

Belfast Intl

Sat 8/16

2:00 pm-3:50 pm

1 stop31h 50m

$1,686

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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How to get the cheapest flight ticket from Austin to Belfast Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Austin and Belfast Intl Airport?

What is the cheapest day to depart on your flight to Belfast Intl Airport?

The cheapest day to depart on your flight to Belfast Intl Airport is on a Friday when prices can be found for as low as $776. This is often the case because there is less demand to fly during this day of the week. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Austin to Belfast Intl Airport for around $1,288.

What is the cheapest time of day to depart on your flight to Belfast Intl Airport?

At noon is the cheapest time of day to fly from Austin to Belfast Intl Airport when you can find flight prices for as low as $759. Flying to Belfast Intl Airport at noon is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Belfast Intl Airport is in the afternoon when prices are around $980.

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

Best Price Found

$1,183

Fastest flight time

21h 58m

Direct flights

None
The best flight deal from Austin to Belfast Intl Airport found on momondo in the last 72 hours is $1,183
The fastest flight from Austin to Belfast Intl Airport takes 21h 58m
There are no direct flights from Austin to Belfast Intl Airport. Popular non-direct route for this connection is Austin Bergstrom Airport - 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 21h 58m.

  • 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 $751Free CancellationRating
6.6
7,222 reviews
Search British Airways flights

Traveling to a place near Belfast?

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