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Cheap flights from Tucson to St. Louis from $134

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Tucson to St. Louis departing on 5/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Tucson to St. Louis

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Tucson to St. Louis.
Delta Logo
6:00 am - 3:58 pmTUS-STL
7h 58m1 stop
Delta Logo
3:30 pm - 9:54 pmSTL-TUS
8h 24m1 stop
$267Delta
Find Deal
Wed, Sep 24 - Tue, Sep 30
American Airlines Logo
1:52 pm - 10:27 pmTUS-STL
6h 35m2 stops
American Airlines Logo
7:59 pm - 10:47 pmSTL-TUS
4h 48m1 stop
$272American Airlines
Find Deal
Wed, Sep 24 - Tue, Sep 30
American Airlines Logo
1:46 pm - 10:45 pmTUS-STL
6h 59m1 stop
American Airlines Logo
5:19 am - 8:32 amSTL-TUS
5h 13m1 stop
$293American Airlines
Find Deal
Thu, May 22 - Tue, May 27
Southwest Logo
1:55 pm - 11:10 pmTUS-STL
7h 15m2 stops
Southwest Logo
3:35 pm - 10:10 pmSTL-TUS
8h 35m1 stop
$298Southwest
Find Deal
Wed, Jun 4 - Wed, Jun 18
Southwest Logo
2:35 pm - 12:25 amTUS-STL
7h 50m1 stop
Southwest Logo
6:15 pm - 10:40 pmSTL-TUS
6h 25m1 stop
$319Southwest
Find Deal
Tue, Jul 15 - Mon, Jul 21
Southwest Logo
2:35 pm - 12:25 amTUS-STL
7h 50m1 stop
Southwest Logo
4:40 pm - 11:35 pmSTL-TUS
8h 55m2 stops
$324Southwest
Find Deal
Tue, Jul 15 - Mon, Jul 21
United Airlines Logo
6:00 am - 6:58 pmTUS-STL
10h 58m2 stops
United Airlines Logo
9:17 am - 8:38 pmSTL-TUS
13h 21m2 stops
$357United Airlines
Find Deal
Wed, Aug 27 - Sat, Sep 6
United Airlines Logo
6:24 am - 6:00 pmTUS-STL
9h 36m1 stop
United Airlines Logo
5:27 pm - 8:54 amSTL-TUS
17h 27m2 stops
$472United Airlines
Find Deal
Thu, May 22 - Tue, May 27
Alaska Airlines Logo
10:33 am - 12:04 amTUS-STL
11h 31m2 stops
Alaska Airlines Logo
3:03 pm - 2:26 pmSTL-TUS
25h 23m2 stops
$764Alaska Airlines
Find Deal
Thu, Jun 5 - Sun, Jun 8
Alaska Airlines Logo
7:10 am - 8:08 amTUS-STL
22h 58m2 stops
Alaska Airlines Logo
6:28 am - 11:05 amSTL-TUS
30h 37m2 stops
$804Alaska Airlines
Find Deal
Fri, Jun 6 - Sun, Jun 8

American Airlines flights from Tucson to St. Louis

Our best American Airlines deals on Tucson to St. Louis flight tickets
American Airlines
Sep 24
TUS1:52 pmTucson
6h 35m
2 stops
STL10:27 pmLambert-St Louis
Sep 30
STL7:59 pmLambert-St Louis
4h 48m
1 stop
TUS10:47 pmTucson
American Airlines
May 22
TUS1:46 pmTucson
6h 59m
1 stop
STL10:45 pmLambert-St Louis
May 27
STL5:19 amLambert-St Louis
5h 13m
1 stop
TUS8:32 amTucson
American Airlines
Jun 5
TUS3:33 pmTucson
5h 46m
1 stop
STL11:19 pmLambert-St Louis
Jun 8
STL5:37 amLambert-St Louis
4h 57m
1 stop
TUS8:34 amTucson

Southwest flights from Tucson to St. Louis

Our best Southwest deals on Tucson to St. Louis flight tickets
Southwest
Jun 4
TUS1:55 pmTucson
7h 15m
2 stops
STL11:10 pmLambert-St Louis
Jun 18
STL3:35 pmLambert-St Louis
8h 35m
1 stop
TUS10:10 pmTucson
Southwest
Jul 15
TUS2:35 pmTucson
7h 50m
1 stop
STL12:25 amLambert-St Louis
Jul 21
STL6:15 pmLambert-St Louis
6h 25m
1 stop
TUS10:40 pmTucson
Southwest
Jul 15
TUS2:35 pmTucson
7h 50m
1 stop
STL12:25 amLambert-St Louis
Jul 21
STL4:40 pmLambert-St Louis
8h 55m
2 stops
TUS11:35 pmTucson

See travel insights to St. Louis from

How to get the cheapest flight ticket from Tucson to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to St. Louis?

In general, January is the cheapest month to fly from Tucson to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $332. The month of April is another great option to travel to St. Louis, with average flight prices from Tucson averaging around $339.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Tuesday when prices can be found for as low as $377. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $615. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Tucson at noon is the least expensive time of day to depart. momondo users have found prices as low as $388 when looking at flights departing at noon. In the afternoon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $431 per ticket.

How far in advance should I book a flight to St. Louis?

You are more likely to see cheaper flights to St. Louis from Tucson when booking 23 weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $407 when searching 23 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from Tucson for as low as $317 on momondo.

How have Tucson to St. Louis flight prices changed over time?

As of April 2025, prices for Tucson to St. Louis flights are approximately 19% cheaper when compared to flights at the same time last year.

When to book flights from Tucson to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Tucson to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Tucson to St. Louis (TUS to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Tucson to St. Louis

Best Price Found

$134

Fastest flight time

4h 36m

Direct flights

None

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Tucson in the past 72 hours is $134. The best round-trip flight deal from Tucson to St. Louis found on momondo in the last 72 hours is $267.
The fastest flight from Tucson to St. Louis takes 4h 36m
There are no direct flights from Tucson to St. Louis. Popular non-direct route for this connection is Tucson Airport - Lambert-St Louis Airport.
There is 1 airport near St. Louis: Lambert-St Louis (STL)

  • How far is Tucson to Lambert-St Louis by plane?

    The distance between Tucson and Lambert-St Louis is about 1245.9 mi. A reasonable flight in good conditions will take 4h 36m.

  • When did momondo last update prices for flights from Tucson Airport to Lambert-St Louis Airport?

    Prices for flights from Tucson Airport to Lambert-St Louis Airport were last updated today.

  • How many operators does momondo search for flights from Tucson Airport to Lambert-St Louis Airport?

  • How old do you have to be to fly from Tucson Airport to Lambert-St Louis Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Tucson Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The necessary travel and health documents for your Lambert-St Louis Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Tucson to St. Louis?


Best airlines flying from Tucson to St. Louis

Compare and see reviews for airlines that fly from Tucson to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $266Free CancellationRating
7.4
8,685 reviews
Search United Airlines flights
American AirlinesPriceFrom $286Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $289Free CancellationRating
8.0
7,920 reviews
Search Delta flights
SouthwestPriceFrom $308Free CancellationRating
8.0
4,286 reviews
Search Southwest flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Florissant
Maryland Heights
Hermann
Fairview Heights
Collinsville
Fenton
Farmington
O'Fallon
St. Peters
Wentzville
Alton
Glencoe
Eureka
Edwardsville
Festus
Clayton
Grafton
Litchfield

Why use momondo?

Why should I use momondo to find a flight deal from Tucson to St. Louis?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Tucson to St. Louis. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Tucson to St. Louis with flexible booking policies on momondo?

Flights from Tucson to St. Louis with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Tucson to St. Louis?

Once all potential Tucson to St. Louis flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Tucson to St. Louis right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Tucson to St. Louis flights. All you need is a valid email address and we will do the rest; it is that quick and easy.


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