What are the most popular destinations to fly to from St. Louis?

This month, the top selected destinations from St. Louis are Cancún, Anchorage, Boston. Throughout the year, Cancún, Boston, Atlanta are some of the top choices made by users flying from St. Louis.

What is the cheapest flight from St. Louis to anywhere?

Users have flown out of St. Louis for as low as $38 to Little Rock (prices may vary depending on the airline and departure time). On average, users have booked flights for $768 to fly from St. Louis.

What are the cheapest airlines flying from St. Louis to anywhere?

Over the past few days, we've found that Spirit Airlines, Frontier, and Southern / Mokulele have the cheapest prices from St. Louis. Spirit Airlines flights from St. Louis to Boston Logan Intl ($27), Frontier flights from St. Louis to Atlanta Hartsfield-Jackson ($45), and Southern / Mokulele flights from St. Louis to Atlanta Hartsfield-Jackson ($51).

What is the cheapest premium economy flight from St. Louis?

Options for some of the cheapest premium economy flights from St. Louis we have found on Cheapflights are as follows: Fly from Lambert-St Louis to Orlando Airport starting at $176 Fly from Lambert-St Louis to New York LaGuardia Airport starting at $536 Fly from Lambert-St Louis to Seattle starting at $972 Fly from Lambert-St Louis to Cancún starting at $982

What is the cheapest first class flight from St. Louis?

If you’re looking for a cheap first-class flight from St. Louis, consider Las Vegas. Prices start at $418 so you can fly first-class even on a budget.

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

April is currently the cheapest month to fly from St. Louis . At this moment in time February is the most expensive month. These prices are determined by multiple factors and booking in advance can help keep costs down if your schedule is not as flexible.

Where are the cheapest places to fly to from St. Louis?

Check out the cheapest flights from St. Louis to embark to: Fly from St. Louis to Detroit from $58 round trip Fly from St. Louis to Chicago from $97 round trip Fly from St. Louis to Orlando from $108 round trip Fly from St. Louis to Fort Lauderdale from $112 round trip Fly from St. Louis to New York from $113 round trip

$54+ Flights from St. Louis

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

What to know about flights from St. Louis

Cheapest one-way flight	$63
Cheapest round-trip flight	$72
Cheapest airline	Delta
Most popular destination	Chicago O'Hare Intl (ORD)
Good round-trip deal	$78 or less
Good one-way deal	$89 or less

The cheapest one-way flight from Lambert-St Louis is currently to Orlando.

Search Deals

The cheapest round-trip flight from Lambert-St Louis is currently to Quincy Regional.

Search Deals

On average, Delta currently has the cheapest one-way flight from Lambert-St Louis (avg. price of $242).

Search Deals

Chicago O'Hare Intl (ORD) is currently the most popular flight destination from Lambert-St Louis (average round-trip price of $644).

Search Deals

Price to beat on a round-trip flight from Lambert-St Louis.

Search Deals

Price to beat on a one-way flight from Lambert-St Louis.

Search Deals

Find flights from St. Louis

Cheapest flights from St. Louis
Explore the most affordable flight options available from St. Louis. Find the lowest fares based on data from user searches, with prices last updated on junio 12, 2025.

mié. 7/97:29 pmSTL - DEN

Nonstop2h 29mFrontier

mié. 7/166:00 amDEN - STL

Nonstop2h 11mFrontier

Deal found 6/12$139

lun. 8/46:45 pmSTL - DEN

Nonstop2h 20mSouthwest

jue. 8/145:30 amDEN - STL

Nonstop2h 00mSouthwest

Deal found 6/10$157

lun. 9/228:44 amSTL - LAS

1 stop13h 22mSpirit Airlines

jue. 9/2510:55 pmLAS - STL

1 stop6h 54mSpirit Airlines

Deal found 6/12$163

jue. 8/77:01 amSTL - DFW

Nonstop1h 51mAmerican Airlines

lun. 8/117:15 amDFW - STL

Nonstop1h 47mAmerican Airlines

Deal found 6/11$168

jue. 7/1010:47 amSTL - DFW

1 stop9h 28mMultiple Airlines

dom. 7/135:06 pmDFW - STL

Nonstop1h 53mMultiple Airlines

Deal found 6/11$169

vie. 10/105:52 pmSTL - LAS

1 stop7h 44mFrontier

sáb. 10/1112:59 amLAS - STL

1 stop6h 08mFrontier

Deal found 6/9$171

dom. 6/298:44 pmSTL - DFW

Nonstop1h 58mFrontier

jue. 7/35:30 pmDFW - STL

Nonstop1h 54mFrontier

Deal found 6/10$172

jue. 9/188:44 amSTL - DFW

1 stop11h 48mSpirit Airlines

dom. 9/212:19 pmDFW - STL

1 stop17h 30mSpirit Airlines

Deal found 6/10$175

mar. 8/1212:20 pmSTL - DEN

1 stop6h 43mAmerican Airlines

sáb. 8/1611:59 pmDEN - STL

1 stop7h 07mAmerican Airlines

Deal found 6/10$182

lun. 9/228:44 amSTL - LAS

1 stop13h 22mMultiple Airlines

mié. 9/2412:59 amLAS - STL

1 stop6h 08mMultiple Airlines

Deal found 6/10$185

mar. 8/128:00 amSTL - DEN

1 stop5h 32mUnited Airlines

sáb. 8/161:25 pmDEN - STL

Nonstop2h 06mUnited Airlines

Deal found 6/10$187

jue. 8/74:20 pmSTL - SEA

1 stop9h 45mSouthwest

mar. 8/1210:45 pmSEA - STL

1 stop10h 05mSouthwest

Deal found 6/9$194

Best flights from St. Louis
Discover carefully curated flight deals from St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated junio 12, 2025.

mié. 7/97:29 pmSTL - DEN

Nonstop2h 29mFrontier

mié. 7/166:00 amDEN - STL

Nonstop2h 11mFrontier

Deal found 6/12$139

lun. 8/46:45 pmSTL - DEN

Nonstop2h 20mSouthwest

jue. 8/145:30 amDEN - STL

Nonstop2h 00mSouthwest

Deal found 6/10$157

lun. 9/228:44 amSTL - LAS

1 stop13h 22mSpirit Airlines

jue. 9/2510:55 pmLAS - STL

1 stop6h 54mSpirit Airlines

Deal found 6/12$163

jue. 8/77:01 amSTL - DFW

Nonstop1h 51mAmerican Airlines

lun. 8/117:15 amDFW - STL

Nonstop1h 47mAmerican Airlines

Deal found 6/11$168

jue. 7/1010:47 amSTL - DFW

1 stop9h 28mMultiple Airlines

dom. 7/135:06 pmDFW - STL

Nonstop1h 53mMultiple Airlines

Deal found 6/11$169

mar. 8/128:00 amSTL - DEN

1 stop5h 32mUnited Airlines

sáb. 8/161:25 pmDEN - STL

Nonstop2h 06mUnited Airlines

Deal found 6/10$187

sáb. 7/265:23 pmSTL - DFW

1 stop6h 58mDelta

mar. 7/294:25 pmDFW - STL

1 stop7h 28mDelta

Deal found 6/9$197

lun. 8/183:24 pmSTL - SEA

Nonstop4h 26mHawaiian Airlines

lun. 9/811:34 amSEA - STL

Nonstop4h 00mHawaiian Airlines

Deal found 6/11$249

dom. 6/296:12 amSTL - DEN

1 stop27h 27mSun Country Air

jue. 7/36:13 pmDEN - STL

1 stop16h 17mSun Country Air

Deal found 6/12$325

lun. 7/77:32 pmSTL - SEA

Nonstop4h 28mAlaska Airlines

lun. 7/148:32 amSEA - STL

Nonstop3h 54mAlaska Airlines

Deal found 6/10$329

vie. 10/105:52 pmSTL - LAS

1 stop7h 44mFrontier

sáb. 10/1112:59 amLAS - STL

1 stop6h 08mFrontier

Deal found 6/9$171

jue. 9/188:44 amSTL - DFW

1 stop11h 48mSpirit Airlines

dom. 9/212:19 pmDFW - STL

1 stop17h 30mSpirit Airlines

Deal found 6/10$175

Last-minute flights from St. Louis
Discover last-minute flight deals departing from St. Louis. Data last updated junio 12, 2025 and is based on user searches.

mié. 6/187:27 amSTL - EWR

Nonstop2h 33mUnited Airlines

mar. 7/159:30 pmEWR - STL

Nonstop3h 05mUnited Airlines

Deal found 6/10$268

mié. 6/189:04 amSTL - EWR

1 stop6h 16mAmerican Airlines

mar. 7/157:29 pmEWR - STL

1 stop5h 30mAmerican Airlines

Deal found 6/10$288

jue. 6/198:44 pmSTL - DFW

Nonstop1h 58mFrontier

jue. 7/35:30 pmDFW - STL

Nonstop1h 54mFrontier

Deal found 6/11$170

jue. 6/198:44 pmSTL - DFW

Nonstop1h 58mMultiple Airlines

jue. 6/265:45 amDFW - STL

1 stop11h 19mMultiple Airlines

Deal found 6/11$193

jue. 6/196:36 pmSTL - DFW

1 stop27h 06mSpirit Airlines

lun. 6/305:45 amDFW - STL

1 stop12h 33mSpirit Airlines

Deal found 6/10$283

vie. 6/2011:28 amSTL - LAS

1 stop15h 26mSpirit Airlines

dom. 6/229:14 pmLAS - STL

1 stop11h 19mSpirit Airlines

Deal found 6/9$254

vie. 6/206:36 pmSTL - LGA

1 stop3h 41mSpirit Airlines

mar. 7/155:59 amLGA - STL

2 stops29h 30mSpirit Airlines

Deal found 6/9$261

sáb. 6/217:29 pmSTL - DEN

Nonstop2h 27mFrontier

sáb. 7/56:00 amDEN - STL

Nonstop2h 11mFrontier

Deal found 6/10$199

sáb. 6/215:55 pmSTL - DEN

1 stop6h 45mSouthwest

sáb. 7/57:25 amDEN - STL

Nonstop2h 00mSouthwest

Deal found 6/10$287

sáb. 6/212:52 pmSTL - LAS

1 stop23h 01mFrontier

lun. 6/238:20 amLAS - STL

Nonstop3h 22mFrontier

Deal found 6/10$290

dom. 6/228:44 pmSTL - LAS

1 stop12h 12mMultiple Airlines

jue. 6/269:14 pmLAS - STL

1 stop11h 19mMultiple Airlines

Deal found 6/9$222

dom. 6/226:36 pmSTL - EWR

1 stop20h 24mSpirit Airlines

jue. 6/2611:00 amEWR - STL

1 stop7h 04mSpirit Airlines

Deal found 6/11$280

One-way flights from St. Louis
Search for one-way flight options from St. Louis. Find affordable one-way fares based on user searches. Data last updated junio 12, 2025.

vie. 9/128:44 amSTL - EWR

1 stop9h 01mSpirit Airlines

Deal found 6/10$54

vie. 9/58:44 amSTL - MIA

1 stop9h 09mSpirit Airlines

Deal found 6/12$70

sáb. 8/167:29 pmSTL - LAS

1 stop6h 05mFrontier

Deal found 6/10$71

jue. 9/48:44 amSTL - LAS

1 stop13h 22mSpirit Airlines

Deal found 6/10$72

jue. 7/38:44 pmSTL - DFW

Nonstop1h 58mFrontier

Deal found 6/10$83

mié. 7/97:29 pmSTL - DEN

Nonstop2h 29mFrontier

Deal found 6/12$84

mar. 7/157:03 amSTL - DFW

Nonstop1h 56mAmerican Airlines

Deal found 6/11$87

mar. 7/158:05 amSTL - MIA

Nonstop2h 50mSouthwest

Deal found 6/12$89

lun. 9/83:20 pmSTL - DEN

1 stop5h 52mUnited Airlines

Deal found 6/10$89

dom. 7/2010:47 amSTL - DFW

1 stop21h 31mSpirit Airlines

Deal found 6/11$90

mié. 8/206:00 amSTL - DFW

1 stop6h 18mDelta

Deal found 6/10$99

mié. 7/237:45 amSTL - DEN

1 stop8h 15mDelta

Deal found 6/10$99

International flights from St. Louis
Find cheap international flights from St. Louis based on historic user searches and pricing. Information updated on junio 12, 2025.

lun. 9/89:56 amSTL - CAI

2 stops29h 54mQatar Airways

mar. 10/72:05 amCAI - STL

2 stops26h 18mQatar Airways

Deal found 6/9$945

jue. 9/41:30 pmSTL - MNL

2 stops27h 50mAir Canada

lun. 9/159:25 amMNL - STL

2 stops42h 53mAir Canada

Deal found 6/11$950

mié. 8/66:41 amSTL - DXB

2 stops29h 14mQatar Airways

mié. 9/1711:25 pmDXB - STL

2 stops33h 34mQatar Airways

Deal found 6/10$950

vie. 8/811:25 amSTL - DEL

2 stops23h 35mUnited Airlines

vie. 8/2911:35 pmDEL - STL

1 stop21h 32mUnited Airlines

Deal found 6/12$987

jue. 8/76:00 amSTL - DXB

1 stop27h 35mMultiple Airlines

mié. 9/171:25 amDXB - STL

2 stops51h 32mMultiple Airlines

Deal found 6/10$1,002

jue. 7/38:00 amSTL - DXB

2 stops25h 35mUnited Airlines

lun. 7/71:55 amDXB - STL

2 stops22h 52mUnited Airlines

Deal found 6/11$1,010

jue. 7/109:16 amSTL - DEL

2 stops28h 19mDelta

lun. 8/1112:50 amDEL - STL

2 stops30h 37mDelta

Deal found 6/10$1,042

vie. 8/83:59 pmSTL - DEL

2 stops23h 26mKLM

jue. 8/283:55 amDEL - STL

2 stops29h 58mKLM

Deal found 6/12$1,070

lun. 8/47:32 pmSTL - MNL

2 stops31h 18mChina Airlines

mar. 9/24:50 pmMNL - STL

2 stops37h 44mChina Airlines

Deal found 6/11$1,075

mié. 7/210:30 amSTL - DXB

2 stops27h 30mDelta

sáb. 7/121:00 amDXB - STL

2 stops24h 18mDelta

Deal found 6/11$1,088

vie. 8/84:00 pmSTL - DEL

2 stops43h 40mMultiple Airlines

jue. 8/282:55 amDEL - STL

1 stop21h 05mMultiple Airlines

Deal found 6/12$1,098

dom. 6/157:50 amSTL - DEL

2 stops26h 40mAmerican Airlines

mar. 6/1711:30 pmDEL - STL

2 stops23h 51mAmerican Airlines

Deal found 6/11$1,130

Find flights from St. Louis within your budget

Fly to

Route

Depart

Return

Price

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

mié. 7/9

7:29 pm-8:58 pm

Nonstop2h 29m

Denver Intl

mié. 7/16

6:00 am-9:11 am

Nonstop2h 11m

$139

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

lun. 8/4

6:45 pm-8:05 pm

Nonstop2h 20m

Denver Intl

jue. 8/14

5:30 am-8:30 am

Nonstop2h 00m

$157

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

vie. 8/22

10:08 am-11:57 am

Nonstop1h 49m

Dallas/Fort Worth

mié. 9/3

1:27 pm-3:09 pm

Nonstop1h 42m

$159

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

vie. 9/5

8:44 am-8:32 pm

1 stop11h 48m

Dallas/Fort Worth

dom. 9/7

8:55 am-10:47 am

Nonstop1h 52m

$165

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

dom. 6/29

8:44 pm-10:42 pm

Nonstop1h 58m

Dallas/Fort Worth

jue. 7/3

5:30 pm-7:24 pm

Nonstop1h 54m

$172

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

jue. 9/18

8:44 am-8:32 pm

1 stop11h 48m

Dallas/Fort Worth

dom. 9/21

2:19 pm-7:49 am

1 stop17h 30m

$175

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

mié. 7/23

11:24 am-11:37 pm

1 stop14h 13m

Las Vegas Harry Reid Intl

sáb. 7/26

12:20 am-9:52 am

1 stop7h 32m

$178

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

mar. 8/12

12:20 pm-6:03 pm

1 stop6h 43m

Denver Intl

sáb. 8/16

11:59 pm-8:06 am

1 stop7h 07m

$182

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

mar. 8/12

5:31 pm-11:22 pm

1 stop6h 51m

Denver Intl

sáb. 8/16

5:37 pm-8:45 pm

Nonstop2h 08m

$187

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

jue. 7/3

2:27 pm-4:05 pm

Nonstop3h 38m

Las Vegas Harry Reid Intl

vie. 7/4

12:58 pm-10:15 am

1 stop19h 17m

$192

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 60 results

...

Best time to book a flight from St. Louis

Have a flexible travel schedule? Discover the best time to fly from St. Louis with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from St. Louis

Get recent, data-driven insights about flights from St. Louis including ideal travel times, pricing trends, and more.

When is the best time to book a flight from St. Louis?

To ensure you get the cheapest price possible for a flight from St. Louis, you should look to book at least 36 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from St. Louis?

Currently, April is the cheapest month in which you can book a flight from St. Louis (average of $141). Flying from St. Louis in February will prove the most costly (average of $224). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

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

Those who are seeking the cheapest fare on flights departing from St. Louis would be wise to consider leaving during Wednesday mornings when prices are typically at their lowest. When considering other options, price-conscious travelers should avoid Sunday afternoons when fares are usually the most expensive.

Which airlines fly from St. Louis?

For flights departing from St. Louis check dates and pricing for the following: Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, United Airlines. These airlines depart to the following popular destinations: Seattle.

What are popular destinations to fly to from St. Louis?

Some of the most frequent flights departing from St. Louis everyday are: Chicago (848 flights per day), Atlanta (243 flights per day), and Dallas (192 flights per day).

Chicago

From $77

Atlanta Hartsfield-Jackson

What is the cheapest place to fly to from St. Louis?

The cheapest city to fly to from St. Louis is Little Rock, with prices starting at $38. Explore other affordable destinations below.

Airline reviews for flights from St. Louis

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Alaska Airlines

8.0

Very good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Southwest

8.0

Very good

4,287 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Delta

8.0

Very good

7,950 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Hawaiian Airlines

7.9

Good

2,494 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

United Airlines

7.4

Good

8,790 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Browse thousands of different options on Cheapflights for your next trip

Related info for your journey

What are the most popular destinations to fly to from St. Louis?
This month, the top selected destinations from St. Louis are Cancún, Anchorage, Boston. Throughout the year, Cancún, Boston, Atlanta are some of the top choices made by users flying from St. Louis.
What is the cheapest flight from St. Louis to anywhere?
Users have flown out of St. Louis for as low as $38 to Little Rock (prices may vary depending on the airline and departure time). On average, users have booked flights for $768 to fly from St. Louis.
What are the cheapest airlines flying from St. Louis to anywhere?
Over the past few days, we've found that Spirit Airlines, Frontier, and Southern / Mokulele have the cheapest prices from St. Louis. Spirit Airlines flights from St. Louis to Boston Logan Intl ($27), Frontier flights from St. Louis to Atlanta Hartsfield-Jackson ($45), and Southern / Mokulele flights from St. Louis to Atlanta Hartsfield-Jackson ($51).
What is the cheapest premium economy flight from St. Louis?
Options for some of the cheapest premium economy flights from St. Louis we have found on Cheapflights are as follows:
Fly from Lambert-St Louis to Orlando Airport starting at $176
Fly from Lambert-St Louis to New York LaGuardia Airport starting at $536
Fly from Lambert-St Louis to Seattle starting at $972
Fly from Lambert-St Louis to Cancún starting at $982
What is the cheapest first class flight from St. Louis?
If you’re looking for a cheap first-class flight from St. Louis, consider Las Vegas. Prices start at $418 so you can fly first-class even on a budget.
What is the cheapest month to fly from St. Louis?
April is currently the cheapest month to fly from St. Louis. At this moment in time February is the most expensive month. These prices are determined by multiple factors and booking in advance can help keep costs down if your schedule is not as flexible.
Where are the cheapest places to fly to from St. Louis?
Check out the cheapest flights from St. Louis to embark to:
Fly from St. Louis to Detroit from $58 round trip
Fly from St. Louis to Chicago from $97 round trip
Fly from St. Louis to Orlando from $108 round trip
Fly from St. Louis to Fort Lauderdale from $112 round trip
Fly from St. Louis to New York from $113 round trip

See more FAQs

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$54+ Cheap flights from St. Louis

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/12. Fares are subject to change and may not be available on all flights or dates of travel.

What to know about flights from St. Louis

Cheapest one-way flight

Cheapest round-trip flight

Cheapest airline

Most popular destination

Good round-trip deal

Good one-way deal

Find flights from St. Louis

Cheapest flights from St. LouisExplore the most affordable flight options available from St. Louis. Find the lowest fares based on data from user searches, with prices last updated on junio 12, 2025.

Explore the most affordable flight options available from St. Louis. Find the lowest fares based on data from user searches, with prices last updated on junio 12, 2025.

Find flights from St. Louis within your budget

Best time to book a flight from St. Louis

Have a flexible travel schedule? Discover the best time to fly from St. Louis with our price prediction graph.

Travel insights for flights from St. Louis

Get recent, data-driven insights about flights from St. Louis including ideal travel times, pricing trends, and more.

When is the best time to book a flight from St. Louis?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Seattle. Price data was last updated on June 9, 2025.

What is the cheapest month to book a flight from St. Louis?

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

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Seattle. Price data was last updated on June 8, 2025.

Which airlines fly from St. Louis?

What are popular destinations to fly to from St. Louis?

What is the cheapest place to fly to from St. Louis?

Airline reviews for flights from St. Louis

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Popular international destinations from St. Louis

The most popular international flight routes departing from St. Louis we’ve come across at this time.

Related info for your journey

What are the most popular destinations to fly to from St. Louis?

What is the cheapest flight from St. Louis to anywhere?

What are the cheapest airlines flying from St. Louis to anywhere?

What is the cheapest premium economy flight from St. Louis?

What is the cheapest first class flight from St. Louis?

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

Where are the cheapest places to fly to from St. Louis?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from St. Louis
Explore the most affordable flight options available from St. Louis. Find the lowest fares based on data from user searches, with prices last updated on junio 12, 2025.