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Cheap flights from St. Louis to Budapest from $440

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Budapest departing on 9/6. 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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Find the cheapest flights from St. Louis to Budapest (STL-BUD)

Cheap round-trip flights

Logo
4:05 pm - 9:30 amSTL-BUD
34h 25m2 stops
Logo
11:00 am - 11:44 pmBUD-STL
43h 44m2 stops
$649
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Mon, Nov 3 - Mon, Nov 10
Logo
9:15 am - 8:45 amSTL-BUD
40h 30m2 stops
Logo
2:20 pm - 3:44 pmBUD-STL
32h 24m2 stops
$712
Find Deal
Sun, Oct 12 - Tue, Oct 21
Logo
3:30 pm - 10:30 amSTL-BUD
12h 00m1 stop
Logo
2:20 pm - 3:18 pmBUD-STL
31h 58m2 stops
$713
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Sun, Oct 12 - Tue, Oct 21
Logo
3:30 pm - 10:30 amSTL-BUD
12h 00m1 stop
Logo
2:20 pm - 1:30 pmBUD-STL
30h 10m1 stop
$726
Find Deal
Sun, Oct 12 - Tue, Oct 21
British Airways Logo
8:42 am - 11:55 amSTL-BUD
20h 13m2 stops
British Airways Logo
5:40 pm - 8:20 pmBUD-STL
33h 40m2 stops
$764British Airways
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Thu, Oct 16 - Mon, Oct 20
Logo
7:01 am - 6:10 pmSTL-BUD
28h 09m2 stops
Logo
6:55 pm - 8:53 pmBUD-STL
32h 58m2 stops
$767
Find Deal
Thu, Oct 16 - Mon, Oct 20
Scandinavian Airlines Logo
3:36 pm - 7:05 pmSTL-BUD
20h 29m2 stops
Scandinavian Airlines Logo
8:05 pm - 9:15 pmBUD-STL
32h 10m2 stops
$770Scandinavian Airlines
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Tue, Sep 23 - Thu, Oct 2
Lufthansa Logo
8:15 am - 11:35 pmSTL-BUD
32h 20m2 stops
Lufthansa Logo
6:00 am - 1:30 pmBUD-STL
14h 30m1 stop
$792Lufthansa
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Tue, Sep 23 - Fri, Oct 10
Lufthansa Logo
5:28 pm - 12:40 pmSTL-BUD
36h 12m2 stops
Lufthansa Logo
6:00 am - 1:30 pmBUD-STL
14h 30m1 stop
$803Lufthansa
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Sat, Sep 27 - Fri, Oct 10
United Airlines Logo
4:05 pm - 4:50 pmSTL-BUD
41h 45m2 stops
United Airlines Logo
2:20 pm - 3:44 pmBUD-STL
32h 24m2 stops
$879United Airlines
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Sat, Oct 4 - Sat, Oct 11

Air Canada flights from St. Louis to Budapest

Our best Air Canada deals on St. Louis to Budapest flight tickets
Air Canada
Sep 28
STL1:30 pmLambert-St Louis
36h 15m
2 stops
BUD8:45 amBudapest Ferenc Liszt Intl
Oct 9
BUD11:35 amBudapest Ferenc Liszt Intl
15h 22m
2 stops
STL7:57 pmLambert-St Louis
$780
Find similar
Air Canada
Sep 23
STL4:05 pmLambert-St Louis
33h 40m
2 stops
BUD8:45 amBudapest Ferenc Liszt Intl
Oct 8
BUD11:35 amBudapest Ferenc Liszt Intl
15h 22m
2 stops
STL7:57 pmLambert-St Louis
$786
Find similar
Air Canada
Sep 27
STL4:05 pmLambert-St Louis
37h 35m
2 stops
BUD12:40 pmBudapest Ferenc Liszt Intl
Oct 8
BUD11:35 amBudapest Ferenc Liszt Intl
15h 22m
2 stops
STL7:57 pmLambert-St Louis
$789
Find similar

Lufthansa flights from St. Louis to Budapest

Our best Lufthansa deals on St. Louis to Budapest flight tickets
Lufthansa
Sep 23
STL8:15 amLambert-St Louis
32h 20m
2 stops
BUD11:35 pmBudapest Ferenc Liszt Intl
Oct 10
BUD6:00 amBudapest Ferenc Liszt Intl
14h 30m
1 stop
STL1:30 pmLambert-St Louis
$792
Find similar
Lufthansa
Sep 27
STL5:28 pmLambert-St Louis
40h 22m
2 stops
BUD4:50 pmBudapest Ferenc Liszt Intl
Oct 8
BUD6:10 amBudapest Ferenc Liszt Intl
14h 20m
1 stop
STL1:30 pmLambert-St Louis
$803
Find similar
Lufthansa
Sep 23
STL8:15 amLambert-St Louis
25h 35m
2 stops
BUD4:50 pmBudapest Ferenc Liszt Intl
Oct 9
BUD7:05 pmBudapest Ferenc Liszt Intl
25h 25m
1 stop
STL1:30 pmLambert-St Louis
$811
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Budapest 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 August 21, 2025.
Use the filters below to find and compare flights from St. Louis to Budapest that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Mon 11/3

4:05 pm-9:30 am

2 stops34h 25m

Budapest Ferenc Liszt Intl

Mon 11/10

11:00 am-11:44 pm

2 stops43h 44m

$649

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Sun 10/12

9:15 am-8:45 am

2 stops40h 30m

Budapest Ferenc Liszt Intl

Tue 10/21

2:20 pm-3:44 pm

2 stops32h 24m

$712

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Sun 10/12

3:30 pm-10:30 am

1 stop12h 00m

Budapest Ferenc Liszt Intl

Tue 10/21

2:20 pm-3:18 pm

2 stops31h 58m

$713

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Sun 10/12

3:30 pm-10:30 am

1 stop12h 00m

Budapest Ferenc Liszt Intl

Tue 10/21

2:20 pm-1:30 pm

1 stop30h 10m

$726

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Thu 10/16

8:42 am-11:55 am

2 stops20h 13m

Budapest Ferenc Liszt Intl

Mon 10/20

5:40 pm-8:20 pm

2 stops33h 40m

$764

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Thu 10/16

7:01 am-6:10 pm

2 stops28h 09m

Budapest Ferenc Liszt Intl

Mon 10/20

6:55 pm-8:53 pm

2 stops32h 58m

$767

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Tue 9/23

3:36 pm-7:05 pm

2 stops20h 29m

Budapest Ferenc Liszt Intl

Thu 10/2

8:05 pm-9:15 pm

2 stops32h 10m

$770

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Tue 9/23

8:15 am-11:35 pm

2 stops32h 20m

Budapest Ferenc Liszt Intl

Fri 10/10

6:00 am-1:30 pm

1 stop14h 30m

$792

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Sat 9/27

5:28 pm-12:40 pm

2 stops36h 12m

Budapest Ferenc Liszt Intl

Fri 10/10

6:00 am-1:30 pm

1 stop14h 30m

$803

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Sat 10/4

4:05 pm-4:50 pm

2 stops41h 45m

Budapest Ferenc Liszt Intl

Sat 10/11

2:20 pm-3:44 pm

2 stops32h 24m

$879

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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See travel insights to Budapest from

How to get the cheapest flight ticket from St. Louis to Budapest

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 cheapest month to fly to Budapest?

The cheapest month to fly to Budapest from St. Louis is in February. Flight prices, which tend to average around $715, are often lower during this time because this is during the off-season. The month of October is another great option to travel to Budapest, with average flight prices from St. Louis averaging around $890.

What is the cheapest day to depart on your flight to Budapest?

The cheapest day to depart on your flight to Budapest is on a Monday when prices can be found for as low as $987. This is often the case because there is less demand to fly during this day of the week. Flights from St. Louis to Budapest on a Sunday will generally be more expensive and average around $1,139. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Budapest?

In the evening is the cheapest time of day to fly from St. Louis to Budapest when you can find flight prices for as low as $917. Flying to Budapest in the evening is an ideal time because this is during off-peak travel hours. Flights at noon are often more expensive with an average ticket price of $1,098.

Can stopping save me money on St. Louis to Budapest flights?

You could potentially save up to 14% on your flight if you consider stops on a St. Louis to Budapest flight.

When to book flights from St. Louis to Budapest

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

Cheap St. Louis to Budapest (STL to BUD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Budapest

Direct flights

None
There are no direct flights from St. Louis to Budapest. There are no popular flight routes from St. Louis to Budapest.
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  • How far is Lambert-St Louis to Budapest Ferenc Liszt Intl by plane?

    The straight-line distance from Lambert-St Louis to Budapest Ferenc Liszt Intl is 5065.8 mi. A reasonable flight in good conditions will take 12h 00m.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Budapest Ferenc Liszt Intl Airport?

    Prices for flights from Lambert-St Louis Airport to Budapest Ferenc Liszt Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Budapest Ferenc Liszt Intl Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Budapest Ferenc Liszt Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Budapest Ferenc Liszt Intl Airport.

  • What documentation or ID do you need to fly to Budapest Ferenc Liszt Intl Airport?

    The travel and health documents required for your trip to Budapest Ferenc Liszt Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Budapest Ferenc Liszt Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from St. Louis to Budapest?

Best airlines flying from St. Louis to Budapest

Compare and see reviews for airlines that fly from St. Louis to Budapest with momondo
Airline
Rating
Free Cancellation
Price
LufthansaPriceFrom $712Free CancellationRating
6.8
7,344 reviews
Search Lufthansa flights
United AirlinesPriceFrom $762Free CancellationRating
7.4
8,930 reviews
Search United Airlines flights

Traveling to a place near Budapest?

Book flights to Budapest if you plan to visit one of these locations
Siófok
Szeged
Eger
Kecskemét
Szentendre

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Budapest?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Budapest from St. Louis.

Can I find flights from St. Louis to Budapest with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for St. Louis to Budapest flights to just show those with flexible booking policies.

How can momondo help me find flights from St. Louis to Budapest?

Once you have performed a search for St. Louis to Budapest flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from St. Louis to Budapest now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Budapest and let you know when they change.

An easier way to manage your Budapest trip

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Find better results for your trip to Hungary

Airports servicing Hungary

Debrecen Airport
Miskolc Airport