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$397+ 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 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BUD
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$742
(Gotogate)

One-way from

$397
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,592
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 ($260 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($46 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Gotogate deal was found by Cheapflights users on 6/9. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/71:30 pmSTL - BUD
2 stops36h 15mMultiple Airlines
Sun 9/287:05 pmBUD - STL
2 stops31h 52mMultiple Airlines
Deal found 6/9$742
This United Airlines deal was found by Cheapflights users on 6/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/178:15 amSTL - BUD
2 stops22h 50mUnited Airlines
Fri 9/262:20 pmBUD - STL
2 stops31h 58mUnited Airlines
Deal found 6/12$789
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/257:00 amSTL - BUD
2 stops21h 45mDelta
Tue 8/52:10 pmBUD - STL
2 stops31h 26mDelta
Deal found 6/11$984
This Gurufare deal was found by Cheapflights users on 6/12. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/173:30 pmSTL - BUD
1 stop14h 55mLufthansa
Fri 9/266:00 amBUD - STL
2 stops16h 44mLufthansa
Deal found 6/12$993
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/95:25 pmSTL - BUD
2 stops18h 35mAmerican Airlines
Wed 9/177:45 amBUD - STL
2 stops19h 47mAmerican Airlines
Deal found 6/11$3,935
This Air Canada deal was found by Cheapflights users on 6/11. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/101:30 pmSTL - BUD
2 stops20h 40mAir Canada
Thu 9/189:30 amBUD - STL
2 stops17h 27mAir Canada
Deal found 6/11$4,014
This British Airways deal was found by Cheapflights users on 6/11. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/87:59 pmSTL - BUD
2 stops14h 11mBritish Airways
Wed 9/177:45 amBUD - STL
2 stops19h 47mBritish Airways
Deal found 6/11$4,183

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 June 12, 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

Sun 9/7

1:30 pm-8:45 am

2 stops36h 15m

Budapest Ferenc Liszt Intl

Sun 9/28

7:05 pm-7:57 pm

2 stops31h 52m

$742

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 9/17

8:15 am-2:05 pm

2 stops22h 50m

Budapest Ferenc Liszt Intl

Fri 9/26

2:20 pm-3:18 pm

2 stops31h 58m

$789

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Fri 7/25

7:00 am-11:45 am

2 stops21h 45m

Budapest Ferenc Liszt Intl

Tue 8/5

2:10 pm-2:36 pm

2 stops31h 26m

$984

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 9/17

3:30 pm-1:25 pm

1 stop14h 55m

Budapest Ferenc Liszt Intl

Fri 9/26

6:00 am-3:44 pm

2 stops16h 44m

$993

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Tue 9/9

5:25 pm-7:00 pm

2 stops18h 35m

Budapest Ferenc Liszt Intl

Wed 9/17

7:45 am-8:32 pm

2 stops19h 47m

$3,935

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 9/10

1:30 pm-5:10 pm

2 stops20h 40m

Budapest Ferenc Liszt Intl

Thu 9/18

9:30 am-7:57 pm

2 stops17h 27m

$4,014

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Mon 9/8

7:59 pm-5:10 pm

2 stops14h 11m

Budapest Ferenc Liszt Intl

Wed 9/17

7:45 am-8:32 pm

2 stops19h 47m

$4,183

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Mon 9/8

6:30 pm-6:05 pm

3 stops40h 35m

$397

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Mon 9/8

1:30 pm-10:50 am

2 stops14h 20m

$465

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 9/3

3:59 pm-12:15 am

2 stops25h 16m

$472

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 12 results
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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 $1,135). 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 June 12, 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.

Rainfall in Budapest by month

Plan your trip to Budapest by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Budapest ranges from 1.2 - 2.8 inches per month. May is typically the wettest month, when rainfall can reach 2.8 in. February is typically the driest time to visit Budapest when rainfall is around 1.2 in.

Temperature in Budapest by month

Plan your trip to Budapest by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Budapest, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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 June 12, 2025.
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air Canada
7.1
Good
9,537 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Iberia
7.0
Good
2,776 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 $789, United Airlines will fly you from St. Louis to Budapest and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and Lufthansa - these airlines can fly you to your destination from $984 and $993, respectively. Users have found that United Airlines is 27% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from St. Louis to Budapest one-way?

    One-way options have recently been found by users for as low as $465 on Air Canada. Other airlines that offer cheap prices include Iberia from $472 and Delta from $487 one-way.

  • 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 $1,135). 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

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Szeged

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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.
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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$781Average$1,109FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$787Average$1,050FlexibilityNo cancel feeOn-time69%

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