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Cheap flights from St. Louis to Tucson from $80

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Tucson departing on 9/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from St. Louis to Tucson

Cheap round-trip flights

American Airlines Logo
9:23 am - 12:36 pmSTL-TUS
5h 13m1 stop
American Airlines Logo
1:31 pm - 8:22 pmTUS-STL
4h 51m1 stop
$159American Airlines
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Thu, Aug 21 - Mon, Aug 25
American Airlines Logo
7:41 pm - 11:41 pmSTL-TUS
6h 00m1 stop
American Airlines Logo
1:43 pm - 11:14 pmTUS-STL
7h 31m2 stops
$164American Airlines
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Thu, Aug 21 - Mon, Aug 25
American Airlines Logo
7:01 am - 1:13 pmSTL-TUS
8h 12m2 stops
American Airlines Logo
1:43 pm - 11:14 pmTUS-STL
7h 31m2 stops
$169American Airlines
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Thu, Aug 21 - Mon, Aug 25
Southwest Logo
5:55 am - 9:15 amSTL-TUS
5h 20m1 stop
Southwest Logo
2:55 pm - 12:10 amTUS-STL
7h 15m1 stop
$179Southwest
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Wed, Oct 8 - Mon, Oct 13
Southwest Logo
3:00 pm - 9:30 pmSTL-TUS
8h 30m1 stop
Southwest Logo
5:10 am - 6:30 pmTUS-STL
11h 20m2 stops
$189Southwest
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Wed, Oct 8 - Tue, Oct 14
Frontier Logo
7:52 pm - 10:47 amSTL-TUS
16h 55m1 stop
Frontier Logo
11:47 am - 9:07 amTUS-STL
20h 20m1 stop
$256Frontier
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Wed, Oct 29 - Sun, Nov 9
Delta Logo
3:30 pm - 9:54 pmSTL-TUS
8h 24m1 stop
Delta Logo
6:00 pm - 12:37 amTUS-STL
5h 37m1 stop
$257Delta
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Wed, Oct 29 - Thu, Nov 6
Delta Logo
6:00 am - 11:59 amSTL-TUS
7h 59m1 stop
Delta Logo
8:00 am - 12:37 amTUS-STL
15h 37m2 stops
$312Delta
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Wed, Oct 29 - Wed, Nov 12
United Airlines Logo
6:45 am - 3:02 pmSTL-TUS
10h 17m2 stops
United Airlines Logo
2:40 pm - 9:54 pmTUS-STL
6h 14m1 stop
$342United Airlines
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Wed, Oct 29 - Sat, Nov 8
United Airlines Logo
6:45 am - 3:02 pmSTL-TUS
10h 17m2 stops
United Airlines Logo
12:01 pm - 10:47 pmTUS-STL
9h 46m2 stops
$347United Airlines
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Wed, Oct 29 - Tue, Nov 11

Southwest flights from St. Louis to Tucson

Our best Southwest deals on St. Louis to Tucson flight tickets
Southwest
Oct 8
STL5:55 amLambert-St Louis
5h 20m
1 stop
TUS9:15 amTucson
Oct 13
TUS2:55 pmTucson
7h 15m
1 stop
STL12:10 amLambert-St Louis
$179
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Southwest
Oct 8
STL3:00 pmLambert-St Louis
8h 30m
1 stop
TUS9:30 pmTucson
Oct 14
TUS5:10 amTucson
11h 20m
2 stops
STL6:30 pmLambert-St Louis
$189
Find similar
Southwest
Oct 6
STL4:25 pmLambert-St Louis
8h 20m
2 stops
TUS10:45 pmTucson
Oct 9
TUS4:35 pmTucson
5h 20m
1 stop
STL11:55 pmLambert-St Louis
$194
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United Airlines flights from St. Louis to Tucson

Our best United Airlines deals on St. Louis to Tucson flight tickets
United Airlines
Oct 29
STL6:45 amLambert-St Louis
10h 17m
2 stops
TUS3:02 pmTucson
Nov 8
TUS2:40 pmTucson
6h 14m
1 stop
STL9:54 pmLambert-St Louis
$342
Find similar
United Airlines
Oct 29
STL6:45 amLambert-St Louis
10h 17m
2 stops
TUS3:02 pmTucson
Nov 11
TUS12:01 pmTucson
9h 46m
2 stops
STL10:47 pmLambert-St Louis
$347
Find similar
United Airlines
Oct 29
STL6:45 amLambert-St Louis
10h 17m
2 stops
TUS3:02 pmTucson
Nov 12
TUS10:40 amTucson
11h 07m
2 stops
STL10:47 pmLambert-St Louis
$382
Find similar

See travel insights to Tucson from

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

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 Tucson?

In general, August is the cheapest month to fly from St. Louis to Tucson. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $306. If you don’t want to visit Tucson in August, then you should wait until November to fly from St. Louis, when ticket prices are also cheap, with an average price of $336.

What is the cheapest day to depart on your flight to Tucson?

According to our data, Tuesday is the cheapest day to fly to Tucson from St. Louis. The lowest ticket price found for a Tuesday departure recently was $347. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from St. Louis to Tucson for around $528.

What is the cheapest time of day to depart on your flight to Tucson?

At noon is the cheapest time of day to fly from St. Louis to Tucson when you can find flight prices for as low as $383. Flying to Tucson at noon is an ideal time because this is during off-peak travel hours. Flights in the afternoon are often more expensive with an average ticket price of $408.

How far in advance should I book a flight to Tucson?

You are more likely to see cheaper flights to Tucson from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Tucson for around $372 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Tucson from St. Louis for as low as $200 on momondo.

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

As of July 2025, prices for St. Louis to Tucson flights are approximately 35% cheaper when compared to flights at the same time last year.

When to book flights from St. Louis to Tucson

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

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

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

Best Price Found

$80

Fastest flight time

5h 07m

Direct flights

None

Airports in Tucson

1 airport
The best one-way flight to Tucson from St. Louis in the past 72 hours is $80. The best round-trip flight deal from St. Louis to Tucson found on momondo in the last 72 hours is $159.
The fastest flight from St. Louis to Tucson takes 5h 07m
There are no direct flights from St. Louis to Tucson. Popular non-direct route for this connection is Lambert-St Louis Airport - Tucson Airport.
There is 1 airport near Tucson: Tucson (TUS)
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  • How far is Lambert-St Louis to Tucson by plane?

    The straight-line distance from Lambert-St Louis to Tucson is 1245.9 mi. Typically, this will take 5h 07m by plane in normal conditions.

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

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

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Tucson Airport.

  • What documentation or ID do you need to fly to Tucson Airport?

    The travel and health documents you'll need for your trip to Tucson Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Tucson Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from St. Louis to Tucson

Compare and see reviews for airlines that fly from St. Louis to Tucson with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $266Free CancellationRating
8.0
7,952 reviews
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American AirlinesPriceFrom $285Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $286Free CancellationRating
7.4
8,846 reviews
Search United Airlines flights
SouthwestPriceFrom $297Free CancellationRating
8.0
4,250 reviews
Search Southwest flights

  • Southwest Flights From St. Louis to Tucson

    Southwest is one of the most popular airlines flying from St. Louis to Tucson, operating 2 flights/week on average for this route. A good Southwest flight deal for St. Louis to Tucson starts from $297 round-trip, up to an average price of $384. Our users have rated Southwest at 8.0/10.

Traveling to a place near Tucson?

Book flights to Tucson if you plan to visit one of these locations
Tombstone
Bisbee
Sierra Vista
Oro Valley
Green Valley
Nogales
Douglas

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Tucson from St. Louis.

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

Flights from St. Louis to Tucson 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 St. Louis to Tucson?

Once all potential St. Louis to Tucson 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 St. Louis to Tucson right now. Can momondo alert me if prices change?

If you are not ready to book a flight from St. Louis to Tucson now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Tucson and let you know when they change.

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