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$358+ 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 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BUD
Jan 28 — Feb 41
Wed 1/28
Wed 2/4
1 adult, Economy
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Cheap flight deals from St. Louis to Budapest

Best flights from St. Louis to Budapest
Discover carefully curated flight deals from St. Louis to Budapest that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 29, 2025.

This United Airlines deal was found by Cheapflights users on 12/26. 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 2/2511:39 amSTL - BUD
2 stops21h 36mUnited Airlines
Sun 3/16:20 amBUD - STL
1 stop14h 35mUnited Airlines
Deal found 12/26$558
This Ovago deal was found by Cheapflights users on 12/27. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/13:30 pmSTL - BUD
1 stop12h 25mLufthansa
Tue 4/72:25 pmBUD - STL
1 stop30h 00mLufthansa
Deal found 12/27$608
This oojo deal was found by Cheapflights users on 12/26. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1210:00 pmSTL - BUD
1 stop12h 35mBritish Airways
Tue 5/196:20 pmBUD - STL
1 stop32h 10mBritish Airways
Deal found 12/26$751
This United Airlines deal was found by Cheapflights users on 12/27. 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 4/18:54 amSTL - BUD
2 stops31h 36mUnited Airlines
Tue 4/75:55 amBUD - STL
2 stops22h 13mUnited Airlines
Deal found 12/27$568
This United Airlines deal was found by Cheapflights users on 12/26. 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.
Tue 5/127:30 amSTL - BUD
2 stops33h 00mUnited Airlines
Tue 5/195:55 amBUD - STL
2 stops21h 10mUnited Airlines
Deal found 12/26$767

Find 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 December 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$554
(oojo)

One-way from

$358
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$686
Provider with most accurate pricing for Lambert-St Louis-Budapest Ferenc Liszt Intl flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Budapest Ferenc Liszt Intl flights.
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From Lambert-St Louis to Budapest Ferenc Liszt Intl
Search Deals
One-way flight from Lambert-St Louis to Budapest Ferenc Liszt Intl
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($325 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($57 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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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 December 29, 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

Wed 2/25

11:39 am-4:15 pm

2 stops21h 36m

Budapest Ferenc Liszt Intl

Sun 3/1

6:20 am-1:55 pm

1 stop14h 35m

$558

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 4/1

8:54 am-11:30 pm

2 stops31h 36m

Budapest Ferenc Liszt Intl

Tue 4/7

5:55 am-9:08 pm

2 stops22h 13m

$568

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Wed 4/1

3:30 pm-10:55 am

1 stop12h 25m

Budapest Ferenc Liszt Intl

Tue 4/7

2:25 pm-1:25 pm

1 stop30h 00m

$608

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Tue 5/12

10:00 pm-5:35 pm

1 stop12h 35m

Budapest Ferenc Liszt Intl

Tue 5/19

6:20 pm-7:30 pm

1 stop32h 10m

$751

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Tue 5/12

7:30 am-11:30 pm

2 stops33h 00m

Budapest Ferenc Liszt Intl

Tue 5/19

5:55 am-8:05 pm

2 stops21h 10m

$767

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Fri 3/6

7:52 am-6:55 pm

2 stops28h 03m

$358

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Sat 3/7

7:52 am-9:25 am

3 stops42h 33m

$392

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Sat 3/7

6:00 am-10:15 am

2 stops21h 15m

$440

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Fri 3/20

4:05 pm-4:15 pm

2 stops18h 10m

$458

St. LouisBudapest

STL - BUD

STLBUD

Lambert-St Louis

Fri 3/20

4:50 pm-6:05 pm

1 stop19h 15m

$464

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/27

Showing 1-10 of 11 results
1
2

Compare providers for flights from St. Louis to Budapest

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Budapest in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Budapest flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on St. Louis-Budapest flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from St. Louis-Budapest flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Budapest flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Budapest flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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, July is the cheapest month in which you can book a flight from St. Louis to Budapest (average of $468). Flying from St. Louis to Budapest in June is currently the most expensive (average of $1,280). 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.

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 December 29, 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
9,118 reviews

Boarding

7.7

Food

6.6

Comfort

7.3

Overall

7.4

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
9,118 reviews
United Airlines
7.4
Good
9,118 reviews

Boarding

7.7

Food

6.6

Comfort

7.3

Overall

7.4

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
Lufthansa
6.8
Okay
7,659 reviews
United Airlines
7.4
Good
9,118 reviews

Boarding

7.7

Food

6.6

Comfort

7.3

Overall

7.4

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

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.

  • How long is the flight from St. Louis to Budapest?

    For as low as $558, United Airlines can have you in Budapest from St. Louis in 21h 36m. The distance from St. Louis to Budapest is about 5076 mi.

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

    Currently priced at $468, 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 $578. Users have found that Lufthansa is 51% 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, July is the cheapest month in which you can book a flight from St. Louis to Budapest (average of $468). Flying from St. Louis to Budapest in June is currently the most expensive (average of $1,280). 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

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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 December 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$517Average$1,106FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$578Average$1,025FlexibilityNo cancel feeOn-time69%

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