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Flights from Thunder Bay to St. Louis
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Find Thunder Bay to St. Louis flights starting at CAD 509.

We've found these cheap flights for you. You can book one-way or return flight tickets.

  • One way
  • Round-trip
      • YQT17:50
        16h 46m
        2 stops
        STL09:36
        Mon, Dec 2|Thunder Bay - St. Louis|Porter Airlines
        CAD 509CAD 942
        46% OFF
        46% OFF
        CAD 942CAD 509

        Choose Porter Airlines flights from Thunder Bay to St. Louis. The one-way connecting flight with Porter Airlines departs from Thunder Bay Airport on Mon, Dec 2, arriving at St. Louis Lambert International Airport. One-way Prices start from CAD 509 including taxes and charges.

      • YQT11:15
        24h 12m
        2 stops
        STL10:27
        Sun, Nov 24|Thunder Bay - St. Louis|Porter Airlines
        CAD 525CAD 942
        44% OFF
        44% OFF
        CAD 942CAD 525

        Choose Porter Airlines flights from Thunder Bay to St. Louis. The one-way connecting flight with Porter Airlines departs from Thunder Bay Airport on Sun, Nov 24, arriving at St. Louis Lambert International Airport. One-way Prices start from CAD 525 including taxes and charges.

      • YQT08:00
        16h 41m
        2 stops
        STL23:41
        Mon, Nov 25|Thunder Bay - St. Louis|Porter Airlines
        CAD 546CAD 942
        42% OFF
        42% OFF
        CAD 942CAD 546

        Choose Porter Airlines flights from Thunder Bay to St. Louis. The one-way connecting flight with Porter Airlines departs from Thunder Bay Airport on Mon, Nov 25, arriving at St. Louis Lambert International Airport. One-way Prices start from CAD 546 including taxes and charges.

      • YQT06:00
        18h 28m
        2 stops
        STL23:28
        Fri, Nov 22|Thunder Bay - St. Louis|Porter Airlines
        CAD 590
        CAD 590

        Choose Porter Airlines flights from Thunder Bay to St. Louis. The one-way connecting flight with Porter Airlines departs from Thunder Bay Airport on Fri, Nov 22, arriving at St. Louis Lambert International Airport. One-way Prices start from CAD 590 including taxes and charges.

      • YQT06:00
        18h 28m
        2 stops
        STL23:28
        Thu, Jan 2|Thunder Bay - St. Louis|Porter Airlines
        CAD 600
        CAD 600

        Choose Porter Airlines flights from Thunder Bay to St. Louis. The one-way connecting flight with Porter Airlines departs from Thunder Bay Airport on Thu, Jan 2, arriving at St. Louis Lambert International Airport. One-way Prices start from CAD 600 including taxes and charges.

      • YQT06:00
        16h 36m
        2 stops
        STL21:36
        Thu, Dec 5|Thunder Bay - St. Louis|Porter Airlines
        CAD 653
        CAD 653

        Choose Porter Airlines flights from Thunder Bay to St. Louis. The one-way connecting flight with Porter Airlines departs from Thunder Bay Airport on Thu, Dec 5, arriving at St. Louis Lambert International Airport. One-way Prices start from CAD 653 including taxes and charges.

      • YQT12:35
        11h 53m
        2 stops
        STL23:28
        Fri, Nov 29|Thunder Bay - St. Louis|Porter Airlines
        CAD 661
        CAD 661

        Choose Porter Airlines flights from Thunder Bay to St. Louis. The one-way connecting flight with Porter Airlines departs from Thunder Bay Airport on Fri, Nov 29, arriving at St. Louis Lambert International Airport. One-way Prices start from CAD 661 including taxes and charges.

      • YQT08:00
        16h 41m
        2 stops
        STL23:41
        Sat, Nov 30|Thunder Bay - St. Louis|Porter Airlines
        CAD 677
        CAD 677

        Choose Porter Airlines flights from Thunder Bay to St. Louis. The one-way connecting flight with Porter Airlines departs from Thunder Bay Airport on Sat, Nov 30, arriving at St. Louis Lambert International Airport. One-way Prices start from CAD 677 including taxes and charges.

      • YQT10:10
        12h 35m
        2 stops
        STL21:45
        Thu, Jan 2|Thunder Bay - St. Louis|Air Transat
        CAD 800
        CAD 800

        Choose Air Transat flights from Thunder Bay to St. Louis. The one-way connecting flight with Air Transat departs from Thunder Bay Airport on Thu, Jan 2, arriving at St. Louis Lambert International Airport. One-way Prices start from CAD 800 including taxes and charges.

      • YQT13:00
        3h 5m
        Nonstop
        STL14:00
        Fri, Nov 29|Thunder Bay - St. Louis|Porter Airlines
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Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

When is the cheapest time to fly from Thunder Bay to St. Louis?

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Find Cheapest Airlines Flying from Thunder Bay to St. Louis

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Porter Airlines
From CAD 509
Air Transat
From CAD 800

Find more flights and airlines

Alternative Routes for Thunder Bay to St. Louis Flights

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Thunder Bay to St. Louis.

  • Cheapest
    Porter Airlines
    YQT
    17:50
    16h 46m
    2 transfer
    STL
    09:36
    Thunder Bay Airport - St. Louis Lambert International Airport
    Mon, Dec 2Porter Airlines
    CAD 509
  • Porter Airlines
    YQT
    17:50
    16h 46m
    2 transfer
    STL
    09:36
    Thunder Bay Airport - St. Louis Lambert International Airport
    Mon, Dec 2Porter Airlines
    CAD 509
    Find More Flights

FAQ

  • When are flight tickets from Thunder Bay (YQT) to St. Louis (STL) the cheapest?

    Airlines adjust prices for flights from Thunder Bay to St. Louis based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much are flights from Thunder Bay (YQT) to St. Louis (STL) cost?

    According to Trip.com's data, the lowest price is around CAD 653.

  • 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, by taxi about 40 minutes.

  • How many airports in St. Louis (STL)?

How to find a cheap flight from Thunder Bay to St. Louis

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Thunder Bay to St. Louis. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Information for Thunder Bay to St. Louis Flights

Off-season travel monthOctober
Peak season for travelJanuary
Flight distance1,086.93km
Popular airlinePorter Airlines

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