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Idaho Falls Regional Airport to St. Louis flight
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Cheap Flights from Idaho Falls Regional Airport to St. Louis

Search for flights from Idaho Falls Regional Airport to St. Louis. Find affordable one-way or round-trip flights.

  • One way
  • Round-trip
sortSort by: Lowest Price
  • Sort by: Lowest Price
  • Sort by: Earliest Flight
      • IDA19:00
        13h 23m
        2 stops
        STL09:23
        Idaho Falls - St. Louis|Mon, Jun 10|Delta Air Lines
        US$319US$587
        46% OFF
        46% OFF
        US$587US$319
      • IDA17:56
        25h 53m
        1 stop
        STL20:49
        Idaho Falls - St. Louis|Mon, Jun 10|United Airlines
        US$355US$587
        39% OFF
        39% OFF
        US$587US$355
      • IDA15:32
        7h 27m
        1 stop
        STL23:59
        Idaho Falls - St. Louis|Mon, Jun 10|Alaska Airlines
        US$359US$587
        39% OFF
        39% OFF
        US$587US$359
      • IDA13:43
        8h 14m
        1 stop
        STL22:57
        Idaho Falls - St. Louis|Mon, Jun 10|American Airlines
        US$499
        US$499
      • IDA13:00
        3h 5m
        Direct
        STL14:00
        Idaho Falls - St. Louis|Wed, May 29|Delta Air Lines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Selected Airlines from Idaho Falls Regional Airport to St. Louis

View airlines operating flights from Idaho Falls Regional Airport to St. Louis. Compare prices and find the airline that meets your travel needs to enjoy a comfortable journey.

Delta Air Lines
From US$319
United Airlines
From US$355
Alaska Airlines
From US$359
American Airlines
From US$499
ANA airlines
Find more flights and airlines

There are 1 airport(s) in St. Louis. Discover the top routes now!

Discover different airports in St. Louis. Find the best flight and transfer option, and plan your trip accordingly.

  • 21.12 km from downtown St. Louis
    St. Louis Lambert International Airport
    Tickets From
    US$319
Flight Schedule from Idaho Falls Regional Airport to St. Louis

Check on the flight schedule from Idaho Falls Regional Airport to St. Louis. Find the flight that matches your travel plan.

Flight info.
Departure
Arrival
Weekly Schedule

  1. AS2162

    Alaska Airlines

    06:00

    IDA

    1.8h

    06:49

    SEA

    SMTWTFS
    Search

  2. AS388

    Alaska Airlines

    07:37

    SEA

    4.0h

    13:36

    STL

    SMTWTFS

  3. DL3884

    Delta Air Lines

    06:00

    IDA

    1.0h

    07:01

    SLC

    SMTWTFS
    Search

  4. DL1309

    Delta Air Lines

    09:43

    SLC

    2.8h

    13:32

    STL

    SMTWTFS

  5. AA3153

    American Airlines

    06:38

    IDA

    3.0h

    10:36

    DFW

    SMTWTFS
    Search

  6. AA3855

    American Airlines

    12:23

    DFW

    1.8h

    14:13

    STL

    SMTWTFS

  7. UA4706

    United Airlines

    07:00

    IDA

    1.7h

    08:44

    DEN

    SMTWTFS
    Search

  8. UA1315

    United Airlines

    13:30

    DEN

    1.9h

    16:26

    STL

    SMTWTFS

  9. UA5793

    United Airlines

    10:45

    IDA

    1.7h

    12:29

    DEN

    S---TFS
    Search

  10. UA1565

    United Airlines

    17:40

    DEN

    2.1h

    20:49

    STL

    SM-WTFS

  11. DL4177

    Delta Air Lines

    13:31

    IDA

    1.1h

    14:35

    SLC

    SMTWTFS
    Search

  12. DL1394

    Delta Air Lines

    20:55

    SLC

    2.9h

    00:46

    STL

    SMTWTFS

  13. UA5929

    United Airlines

    14:35

    IDA

    1.7h

    16:19

    DEN

    SMTWTFS
    Search

  14. UA1565

    United Airlines

    17:40

    DEN

    2.1h

    20:49

    STL

    SM-WTFS

  15. AS2010

    Alaska Airlines

    16:02

    IDA

    1.9h

    16:58

    SEA

    SMTWTFS
    Search

  16. AS472

    Alaska Airlines

    18:10

    SEA

    3.8h

    23:59

    STL

    SMTWTFS

  17. DL3717

    Delta Air Lines

    19:00

    IDA

    1.1h

    20:04

    SLC

    SMTWT--
    Search

  18. DL477

    Delta Air Lines

    23:25

    SLC

    3.6h

    05:03

    ATL

    SMTWTFS

  19. DL1571

    Delta Air Lines

    08:10

    ATL

    1.7h

    08:52

    STL

    SMTWTFS

  20. DL3717

    Delta Air Lines

    19:00

    IDA

    1.1h

    20:04

    SLC

    SMTWT--
    Search

  21. DL1394

    Delta Air Lines

    20:55

    SLC

    2.9h

    00:46

    STL

    SMTWTFS
Find more flights and airlines

Flight Info of Flights from Idaho Falls Regional Airport to St. Louis

Cheapest nonstop flight price

$355

Off-season for travel

April

Peak season for travel

February

FAQs for Idaho Falls Regional Airport to St. Louis Flights

  • What is the transportation method from the main airport to downtown in St. Louis?

    • The distance from St. Louis Lambert International Airport to downtown is about 20km. It takes about 40 minutes by taxi.

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