Cheap flights from St. Louis to Yellowstone National Park from $354

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Yellowstone National Park departing on 5/30. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
7:00 am - 12:25 pm
STL
-
WYS
6h 25m
1 stop
Delta Logo
1:10 pm - 7:03 pm
WYS
-
STL
4h 53m
1 stop
$354Delta
Sat, May 30 - Wed, Jun 3
United Airlines Logo
9:06 am - 1:32 pm
STL
-
WYS
5h 26m
1 stop
United Airlines Logo
5:45 pm - 11:57 pm
WYS
-
STL
5h 12m
1 stop
$358United Airlines
Sat, May 30 - Sat, Jun 6
United Airlines Logo
6:00 am - 4:37 pm
STL
-
WYS
11h 37m
2 stops
United Airlines Logo
5:45 pm - 11:57 pm
WYS
-
STL
5h 12m
1 stop
$389United Airlines
Sat, May 30 - Sat, Jun 6
Delta Logo
7:00 am - 12:25 pm
STL
-
WYS
6h 25m
1 stop
Delta Logo
1:10 pm - 11:59 pm
WYS
-
STL
9h 49m
2 stops
$614Delta
Sat, May 30 - Wed, Jun 3
United Airlines Logo
6:00 am - 4:37 pm
STL
-
WYS
11h 37m
2 stops
United Airlines Logo
2:19 pm - 11:29 pm
WYS
-
STL
8h 10m
2 stops
$626United Airlines
Sat, May 30 - Sat, Jun 6
United Airlines Logo
6:00 am - 1:32 pm
STL
-
WYS
8h 32m
2 stops
United Airlines Logo
2:19 pm - 12:11 pm
WYS
-
STL
20h 52m
2 stops
$661United Airlines
Sat, May 30 - Wed, Jun 3
United Airlines Logo
1:38 pm - 4:29 pm
STL
-
WYS
27h 51m
1 stop
United Airlines Logo
2:14 pm - 8:43 pm
WYS
-
STL
5h 29m
1 stop
$690United Airlines
Sat, Jul 25 - Thu, Jul 30
United Airlines Logo
7:05 pm - 4:29 pm
STL
-
WYS
22h 24m
2 stops
United Airlines Logo
2:14 pm - 8:43 pm
WYS
-
STL
5h 29m
1 stop
$700United Airlines
Sat, Jul 25 - Thu, Jul 30
United Airlines Logo
4:48 pm - 1:32 pm
STL
-
WYS
21h 44m
1 stop
United Airlines Logo
5:45 pm - 8:43 pm
WYS
-
STL
25h 58m
1 stop
$737United Airlines
Tue, Jun 23 - Sat, Jun 27
United Airlines Logo
5:29 pm - 1:32 pm
STL
-
WYS
21h 03m
2 stops
United Airlines Logo
5:45 pm - 8:43 pm
WYS
-
STL
25h 58m
1 stop
$738United Airlines
Tue, Jun 23 - Sat, Jun 27

United Airlines flights from St. Louis to Yellowstone National Park

Our best United Airlines deals on St. Louis to Yellowstone National Park flight tickets
United Airlines
May 30
STL9:06 amLambert-St Louis
5h 26m
1 stop
WYS1:32 pmWest Yellowstone
Jun 6
WYS5:45 pmWest Yellowstone
5h 12m
1 stop
STL11:57 pmLambert-St Louis
$358
United Airlines
May 30
STL6:00 amLambert-St Louis
11h 37m
2 stops
WYS4:37 pmWest Yellowstone
Jun 6
WYS5:45 pmWest Yellowstone
5h 12m
1 stop
STL11:57 pmLambert-St Louis
$389
United Airlines
May 25
STL9:06 amLambert-St Louis
5h 26m
1 stop
WYS1:32 pmWest Yellowstone
Jun 1
WYS2:19 pmWest Yellowstone
5h 51m
1 stop
STL9:10 pmLambert-St Louis
$492

Delta flights from St. Louis to Yellowstone National Park

Our best Delta deals on St. Louis to Yellowstone National Park flight tickets
Delta
May 30
STL7:00 amLambert-St Louis
6h 25m
1 stop
WYS12:25 pmWest Yellowstone
Jun 3
WYS1:10 pmWest Yellowstone
4h 53m
1 stop
STL7:03 pmLambert-St Louis
$354
Delta
May 30
STL7:00 amLambert-St Louis
6h 25m
1 stop
WYS12:25 pmWest Yellowstone
Jun 3
WYS1:10 pmWest Yellowstone
9h 49m
2 stops
STL11:59 pmLambert-St Louis
$614
Delta
May 25
STL7:05 amLambert-St Louis
10h 27m
2 stops
WYS4:32 pmWest Yellowstone
Jun 1
WYS1:10 pmWest Yellowstone
9h 11m
2 stops
STL11:21 pmLambert-St Louis
$619

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Yellowstone National Park 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, momondo users made 832,500 searches. Data last updated May 17, 2026.
Use the filters below to find and compare flights from St. Louis to Yellowstone National Park that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisWest Yellowstone

STL - WYS

STLWYS

Lambert-St Louis

Sat 5/30

7:00 am-12:25 pm

1 stop6h 25m

West Yellowstone

Wed 6/3

1:10 pm-7:03 pm

1 stop4h 53m

$354
Quickest round-trip

St. LouisWest Yellowstone

STL - WYS

STLWYS

Lambert-St Louis

Sat 5/30

9:06 am-1:32 pm

1 stop5h 26m

West Yellowstone

Sat 6/6

5:45 pm-11:57 pm

1 stop5h 12m

$358

St. LouisWest Yellowstone

STL - WYS

STLWYS

Lambert-St Louis

Sat 5/30

6:00 am-4:37 pm

2 stops11h 37m

West Yellowstone

Sat 6/6

5:45 pm-11:57 pm

1 stop5h 12m

$389

St. LouisWest Yellowstone

STL - WYS

STLWYS

Lambert-St Louis

Sat 5/30

7:00 am-12:25 pm

1 stop6h 25m

West Yellowstone

Wed 6/3

1:10 pm-11:59 pm

2 stops9h 49m

$614

St. LouisWest Yellowstone

STL - WYS

STLWYS

Lambert-St Louis

Sat 5/30

6:00 am-4:37 pm

2 stops11h 37m

West Yellowstone

Sat 6/6

2:19 pm-11:29 pm

2 stops8h 10m

$626

St. LouisWest Yellowstone

STL - WYS

STLWYS

Lambert-St Louis

Sat 5/30

6:00 am-1:32 pm

2 stops8h 32m

West Yellowstone

Wed 6/3

2:19 pm-12:11 pm

2 stops20h 52m

$661

St. LouisWest Yellowstone

STL - WYS

STLWYS

Lambert-St Louis

Sat 7/25

1:38 pm-4:29 pm

1 stop27h 51m

West Yellowstone

Thu 7/30

2:14 pm-8:43 pm

1 stop5h 29m

$690

St. LouisWest Yellowstone

STL - WYS

STLWYS

Lambert-St Louis

Sat 7/25

7:05 pm-4:29 pm

2 stops22h 24m

West Yellowstone

Thu 7/30

2:14 pm-8:43 pm

1 stop5h 29m

$700

St. LouisWest Yellowstone

STL - WYS

STLWYS

Lambert-St Louis

Tue 6/23

4:48 pm-1:32 pm

1 stop21h 44m

West Yellowstone

Sat 6/27

5:45 pm-8:43 pm

1 stop25h 58m

$737

St. LouisWest Yellowstone

STL - WYS

STLWYS

Lambert-St Louis

Tue 6/23

5:29 pm-1:32 pm

2 stops21h 03m

West Yellowstone

Sat 6/27

5:45 pm-8:43 pm

1 stop25h 58m

$738

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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How to get the cheapest flight ticket from St. Louis to Yellowstone National Park

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

Can stopping save me money on St. Louis to Yellowstone National Park flights?

No. A direct flight is the cheapest option for a flight between St. Louis to Yellowstone National Park.

Cheap St. Louis to Yellowstone National Park flight deals and tips

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

Fastest flight time

6h 25m

Direct flights

None
The fastest flight from St. Louis to Yellowstone National Park takes 6h 25m
There are no direct flights from St. Louis to Yellowstone National Park. There are no popular flight routes from St. Louis to Yellowstone National Park.

Frequently asked questions about flying from St. Louis to Yellowstone National Park

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

    Prices for flights from Lambert-St Louis Airport to Yellowstone National Park are updated daily.

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Yellowstone National Park.

  • What documentation or ID do you need to fly to Yellowstone National Park?

    The necessary travel and health documents for your Yellowstone National Park 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 plane model from St. Louis to Yellowstone National Park?

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

Yes. momondo enables you to select and highlight flights to Yellowstone National Park from St. Louis with this policy.

How can momondo help me find flights from St. Louis to Yellowstone National Park?

momondo provides multiple filters to help you find the best flight to Yellowstone National Park from St. Louis. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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1 adult
Tue 6/16
Tue 6/23

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