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$322+ Cheap flights from St. Louis (STL) to Budapest (BUD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BUD
ago. 19 — ago. 261
mar. 8/19
mar. 8/26
1 adult, Economy
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Cheap flight deals from St. Louis to Budapest

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Budapest (BUD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated agosto 14, 2025.

Round-trip from

$750
(Cheapflightsfares)

One-way from

$322
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,102
From Lambert-St Louis to Budapest Ferenc Liszt Intl
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One-way flight from Lambert-St Louis to Budapest Ferenc Liszt Intl
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Highest demand for flights based on searches. 19% potential increase in price ($271 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($45 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from St. Louis to Budapest

Cheapest flights from St. Louis to Budapest
Explore the most affordable flight options available from St. Louis to Budapest. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 14, 2025.

This FlightHub deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/274:05 pmSTL - BUD
2 stops34h 20mAir Canada
mar. 1/136:05 amBUD - STL
2 stops40h 24mAir Canada
Deal found 8/11$639
This FlightHub deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/274:05 pmSTL - BUD
2 stops34h 20mMultiple Airlines
mar. 1/1310:10 amBUD - STL
1 stop34h 45mMultiple Airlines
Deal found 8/11$654
This Cheapflightsfares deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/315:30 pmSTL - BUD
2 stops23h 20mLufthansa
vie. 11/286:25 amBUD - STL
1 stop14h 30mLufthansa
Deal found 8/14$750
This Finnair deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/288:50 amSTL - BUD
2 stops26h 20mMultiple Airlines
dom. 10/56:55 pmBUD - STL
2 stops30h 27mMultiple Airlines
Deal found 8/14$808
This Trip.com deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/283:30 pmSTL - BUD
1 stop19h 50mLufthansa
dom. 10/56:00 amBUD - STL
1 stop14h 30mLufthansa
Deal found 8/14$848
This Mytrip deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/314:00 pmSTL - BUD
2 stops22h 50mMultiple Airlines
vie. 11/283:55 pmBUD - STL
3 stops34h 32mMultiple Airlines
Deal found 8/14$1,641

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated agosto 14, 2025.
Use the filters below to find and compare flights from St. Louis to Budapest that are best for you.

Fly from

St. Louis

Fly to

Budapest

Route

Depart

Return

Price

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

dom. 8/31

5:30 pm-11:50 pm

2 stops23h 20m

Budapest Ferenc Liszt Intl

vie. 11/28

6:25 am-1:55 pm

1 stop14h 30m

$750

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

dom. 9/28

8:50 am-6:10 pm

2 stops26h 20m

Budapest Ferenc Liszt Intl

dom. 10/5

6:55 pm-6:22 pm

2 stops30h 27m

$808

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

dom. 9/28

3:30 pm-6:20 pm

1 stop19h 50m

Budapest Ferenc Liszt Intl

dom. 10/5

6:00 am-1:30 pm

1 stop14h 30m

$848

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

dom. 8/31

4:00 pm-9:50 pm

2 stops22h 50m

Budapest Ferenc Liszt Intl

vie. 11/28

3:55 pm-7:27 pm

3 stops34h 32m

$1,641

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

lun. 9/15

1:57 pm-7:55 pm

2 stops22h 58m

$322

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

dom. 8/31

7:41 pm-1:15 am

2 stops22h 34m

$558

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

dom. 8/31

3:30 pm-6:20 pm

1 stop19h 50m

$570

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

dom. 8/31

1:30 pm-8:45 am

2 stops36h 15m

$571

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/11

Best time to book a flight from St. Louis to Budapest

Have a flexible travel schedule? Discover the best time to fly to Budapest from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Budapest

What is the cheapest month to book a flight from St. Louis to Budapest?

Currently, November is the cheapest month in which you can book a flight from St. Louis to Budapest (average of $656). Flying from St. Louis to Budapest in June is currently the most expensive (average of $1,105). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from STL to BUD?

Find hourly flight availability from St. Louis to Budapest. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated agosto 14, 2025.

One of the essential ways to save on airfare from St. Louis to Budapest is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 17% on airfare.

How much does it cost to fly round-trip from St. Louis to Budapest?

Reviews of airlines servicing Budapest

Get insights into the airlines that provide service to Budapest. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Budapest. Reviews last updated agosto 14, 2025.
See what other customers who have flown with United Airlines and Lufthansa from St. Louis to Budapest have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,916 reviews

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,916 reviews
United Airlines
7.4
Good
8,916 reviews

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Lufthansa
6.8
Okay
7,317 reviews
United Airlines
7.4
Good
8,916 reviews

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Budapest. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from St. Louis to Budapest round-trip?

    Currently priced at $712, Lufthansa will fly you from St. Louis to Budapest and back. In addition to Lufthansa, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on United Airlines for as low as $762. Users have found that Lufthansa is 35% cheaper than the other options available to this destination.

  • Can I find deals for flights from St. Louis to Budapest that include hotel bookings?

    Yes. In addition to deals on St. Louis to Budapest flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Budapest?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Budapest.

  • Can I find deals for business class flights from St. Louis to Budapest?

    Yes. Cheapflights offers flight deals from St. Louis to Budapest by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to Budapest?

    Currently, November is the cheapest month in which you can book a flight from St. Louis to Budapest (average of $656). Flying from St. Louis to Budapest in June is currently the most expensive (average of $1,105). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for St. Louis to Budapest

See prices for flight routes from nearby airports that may be better suited for you.
Kansas City to Budapest flights
Springfield to Budapest flights

Top 2 airlines flying from St. Louis to Budapest

Discover the top 2 airlines that operate flights from St. Louis to Budapest. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated agosto 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$712Average$1,134FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$762Average$1,115FlexibilityNo cancel feeOn-time69%

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