What are the cheapest airlines to fly from Rhode Island to St. Louis one-way?

The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $143. However, be on the lookout for offers from Southwest and Spirit Airlines, as they are both options that can get you from Rhode Island to St. Louis for a low price.

What are the most popular airlines that fly from Rhode Island to St. Louis?

Consider American Airlines, Delta or Southwest when booking your flight. These represent the most popular airlines when flying from Rhode Island to St. Louis.

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

To save on the cost of your flight from Rhode Island to St. Louis, book at least 59 days before your planned departure. Booking around this time can save you about 74% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $521 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $676.

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

September can be a great time to fly to St. Louis from Rhode Island with a flight ticket averaging about $432. Cheapflights users have found deals in the month of September for as cheap as $196. The most expensive prices can be found in the month of April.

What airport do you fly into for flights to St. Louis from Rhode Island?

For a flight from Rhode Island to St. Louis, you will be flying into Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city.

Can I find deals for flights from Rhode Island to St. Louis that include hotel bookings?

Yes. In addition to deals on Rhode Island to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Rhode Island to St. Louis?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Rhode Island to St. Louis.

Can I find deals for business class flights from Rhode Island to St. Louis?

Yes. Cheapflights offers flight deals from Rhode Island to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$143+ Flights from Rhode Island to St. Louis

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Cheap flight deals from Rhode Island to St. Louis

Most accurate provider	FlightHub 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$317 (Delta)
One-way from	$143 (American Airlines)
Popular in	April
Cheapest in	September
Average price	$509

Provider with most accurate pricing for Boston Logan Intl-Lambert-St Louis flight deals.

Search Deals

Provider most trusted by Cheapflights users for Boston Logan Intl-Lambert-St Louis flights.

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From Rhode Island to Lambert-St Louis

Search Deals

One-way flight from Rhode Island to Lambert-St Louis

Search Deals

Highest demand for flights based on searches. 8% potential increase in price ($38 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).

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Average for round-trip flights in April 2025

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Find flight deals from Rhode Island to St. Louis

Cheapest flights from Rhode Island to St. Louis
Explore the most affordable flight options available from Rhode Island to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2025.

Tue 6/176:00 amPVD - STL

1 stop7h 35mDelta

Sat 6/215:23 pmSTL - PVD

1 stop5h 36mDelta

Deal found 4/23

$317

Sat 8/232:35 pmPVD - STL

2 stops7h 57mUnited Airlines

Wed 8/278:10 amSTL - PVD

1 stop5h 30mUnited Airlines

Deal found 4/23

$322

Mon 5/128:00 amBOS - STL

1 stop7h 35mDelta

Tue 5/279:00 amSTL - BOS

1 stop7h 24mDelta

Deal found 4/23

$330

Sat 6/78:00 amBOS - STL

Nonstop3h 08mAmerican Airlines

Sat 6/147:20 amSTL - BOS

1 stop10h 09mAmerican Airlines

Deal found 4/23

$331

Tue 6/106:05 amBOS - STL

Nonstop2h 55mSouthwest

Thu 6/125:05 pmSTL - BOS

1 stop6h 20mSouthwest

Deal found 4/22

$333

Fri 6/610:51 amBOS - STL

1 stop13h 46mMultiple Airlines

Mon 6/97:00 amSTL - BOS

1 stop26h 37mMultiple Airlines

Deal found 4/22

$334

Fri 5/96:00 amBOS - STL

2 stops28h 15mSpirit Airlines

Sun 5/1110:10 amSTL - BOS

1 stop12h 19mSpirit Airlines

Deal found 4/22

$339

Mon 9/16:54 pmBOS - STL

1 stop5h 50mUnited Airlines

Fri 9/57:25 amSTL - BOS

1 stop5h 48mUnited Airlines

Deal found 4/23

$345

Tue 6/177:17 pmPVD - STL

1 stop5h 42mAmerican Airlines

Sat 6/216:00 amSTL - PVD

2 stops9h 33mAmerican Airlines

Deal found 4/23

$353

Wed 8/63:40 pmPVD - STL

2 stops7h 25mSouthwest

Sun 8/108:50 pmSTL - PVD

2 stops15h 25mSouthwest

Deal found 4/23

$368

Thu 5/111:39 amBOS - STL

1 stop24h 52mSun Country Air

Sun 5/48:00 amSTL - BOS

1 stop14h 04mSun Country Air

Deal found 4/23

$425

Fri 11/144:50 pmBOS - STL

2 stops32h 06mAlaska Airlines

Sun 11/167:00 amSTL - BOS

1 stop15h 59mAlaska Airlines

Deal found 4/23

$534

Best flights from Rhode Island to St. Louis
Discover carefully curated flight deals from Rhode Island to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 24, 2025.

Tue 6/176:00 amPVD - STL

1 stop7h 35mDelta

Sat 6/215:23 pmSTL - PVD

1 stop5h 36mDelta

Deal found 4/23

$317

Sat 8/232:35 pmPVD - STL

2 stops7h 57mUnited Airlines

Wed 8/278:10 amSTL - PVD

1 stop5h 30mUnited Airlines

Deal found 4/23

$322

Sat 6/78:00 amBOS - STL

Nonstop3h 08mAmerican Airlines

Sat 6/147:20 amSTL - BOS

1 stop10h 09mAmerican Airlines

Deal found 4/23

$331

Fri 6/610:51 amBOS - STL

1 stop13h 46mMultiple Airlines

Mon 6/97:00 amSTL - BOS

1 stop26h 37mMultiple Airlines

Deal found 4/22

$334

Mon 5/59:09 pmBOS - STL

2 stops21h 06mSpirit Airlines

Thu 5/810:10 amSTL - BOS

2 stops31h 48mSpirit Airlines

Deal found 4/22

$336

Thu 5/297:35 amBOS - STL

Nonstop2h 55mSouthwest

Mon 6/29:10 pmSTL - BOS

1 stop10h 00mSouthwest

Deal found 4/22

$359

Mon 5/128:00 amBOS - STL

1 stop7h 35mDelta

Tue 5/279:00 amSTL - BOS

1 stop7h 24mDelta

Deal found 4/23

$330

Wed 5/216:00 amBOS - STL

1 stop10h 47mUnited Airlines

Wed 5/285:00 amSTL - BOS

2 stops7h 28mUnited Airlines

Deal found 4/23

$333

Tue 6/177:17 pmPVD - STL

1 stop5h 42mAmerican Airlines

Sat 6/216:00 amSTL - PVD

2 stops9h 33mAmerican Airlines

Deal found 4/23

$353

Wed 8/63:40 pmPVD - STL

2 stops7h 25mSouthwest

Sun 8/108:50 pmSTL - PVD

2 stops15h 25mSouthwest

Deal found 4/23

$368

Sat 5/108:00 amPVD - STL

2 stops26h 15mMultiple Airlines

Mon 5/129:50 amSTL - PVD

3 stops28h 08mMultiple Airlines

Deal found 4/22

$633

Last-minute flights from Rhode Island to St. Louis
Discover last-minute flight deals from Rhode Island to St. Louis. Data last updated April 24, 2025 and is based on user searches.

Tue 4/295:00 amBOS - STL

1 stop7h 24mAmerican Airlines

Tue 4/292:19 pmSTL - BOS

Nonstop2h 43mAmerican Airlines

Deal found 4/22

$340

Thu 5/17:59 pmBOS - STL

3 stops21h 46mMultiple Airlines

Sat 5/39:50 amSTL - BOS

2 stops7h 53mMultiple Airlines

Deal found 4/23

$377

Thu 5/111:39 amBOS - STL

1 stop24h 52mSun Country Air

Sun 5/48:00 amSTL - BOS

1 stop14h 04mSun Country Air

Deal found 4/23

$425

Thu 5/11:40 pmPVD - STL

1 stop4h 41mAmerican Airlines

Sun 5/45:00 amSTL - PVD

1 stop6h 54mAmerican Airlines

Deal found 4/23

$468

Thu 5/17:20 amPVD - STL

2 stops6h 00mSouthwest

Sun 5/47:30 pmSTL - PVD

1 stop4h 20mSouthwest

Deal found 4/23

$580

Thu 5/16:00 amBOS - STL

1 stop9h 47mUnited Airlines

Sat 5/34:45 pmSTL - BOS

1 stop11h 54mUnited Airlines

Deal found 4/23

$665

Thu 5/16:00 amPVD - STL

1 stop6h 45mDelta

Sat 5/34:15 pmSTL - PVD

1 stop6h 42mDelta

Deal found 4/23

$677

Thu 5/15:45 amPVD - STL

1 stop5h 13mUnited Airlines

Sat 5/38:00 amSTL - PVD

2 stops9h 51mUnited Airlines

Deal found 4/23

$710

Thu 5/11:15 pmBOS - STL

Nonstop2h 55mSouthwest

Sat 5/312:50 pmSTL - BOS

Nonstop2h 35mSouthwest

Deal found 4/23

$761

Fri 5/25:20 pmBOS - STL

2 stops17h 08mDelta

Mon 5/56:08 amSTL - BOS

1 stop8h 02mDelta

Deal found 4/23

$572

Fri 5/26:35 pmBOS - STL

2 stops30h 24mAlaska Airlines

Tue 5/63:08 pmSTL - BOS

2 stops23h 21mAlaska Airlines

Deal found 4/23

$890

Wed 5/77:00 amBOS - STL

1 stop17h 59mAlaska Airlines

Tue 10/287:00 amSTL - BOS

2 stops22h 17mAlaska Airlines

Deal found 4/23

$594

One-way flights from Rhode Island to St. Louis
Search for one-way flight options from Rhode Island to St. Louis. Find affordable one-way fares based on user searches. Data last updated April 24, 2025.

Tue 6/36:05 amPVD - STL

1 stop7h 47mAmerican Airlines

Deal found 4/23

$143

Sat 5/243:00 pmBOS - STL

Nonstop2h 55mSouthwest

Deal found 4/23

$152

Wed 6/45:45 amBOS - STL

2 stops28h 30mSpirit Airlines

Deal found 4/23

$153

Sat 5/245:20 amBOS - STL

1 stop5h 15mDelta

Deal found 4/23

$156

Tue 9/1612:55 pmPVD - STL

1 stop6h 07mDelta

Deal found 4/23

$159

Tue 5/203:49 pmBOS - STL

3 stops25h 56mMultiple Airlines

Deal found 4/22

$168

Sat 5/3111:46 amBOS - STL

Nonstop3h 04mAmerican Airlines

Deal found 4/22

$175

Tue 5/205:30 amBOS - STL

2 stops10h 17mUnited Airlines

Deal found 4/23

$177

Fri 7/119:40 amBOS - STL

1 stop15h 07mFrontier

Deal found 4/23

$178

Tue 6/36:00 amPVD - STL

2 stops7h 20mUnited Airlines

Deal found 4/23

$204

Thu 5/111:39 amBOS - STL

1 stop24h 52mSun Country Air

Deal found 4/22

$228

Sun 5/256:00 amBOS - STL

2 stops19h 04mAlaska Airlines

Deal found 4/23

$237

Cheapflights Fare Finder

Use the filters below to find and compare flights from Rhode Island to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ProvidenceSt. Louis

PVD - STL

PVDSTL

Providence-TFGreen

Tue 6/17

6:00 am-12:35 pm

1 stop7h 35m

Lambert-St Louis

Sat 6/21

5:23 pm-11:59 pm

1 stop5h 36m

$317

ProvidenceSt. Louis

PVD - STL

PVDSTL

Providence-TFGreen

Sat 8/23

2:35 pm-9:32 pm

2 stops7h 57m

Lambert-St Louis

Wed 8/27

8:10 am-2:40 pm

1 stop5h 30m

$322

BostonSt. Louis

BOS - STL

BOSSTL

Boston Logan Intl

Mon 5/12

8:00 am-2:35 pm

1 stop7h 35m

Lambert-St Louis

Tue 5/27

9:00 am-5:24 pm

1 stop7h 24m

$330

BostonSt. Louis

BOS - STL

BOSSTL

Boston Logan Intl

Sat 6/7

8:00 am-10:08 am

Nonstop3h 08m

Lambert-St Louis

Sat 6/14

7:20 am-6:29 pm

1 stop10h 09m

$331

BostonSt. Louis

BOS - STL

BOSSTL

Boston Logan Intl

Tue 6/10

6:05 am-8:00 am

Nonstop2h 55m

Lambert-St Louis

Thu 6/12

5:05 pm-12:25 am

1 stop6h 20m

$333

BostonSt. Louis

BOS - STL

BOSSTL

Boston Logan Intl

Fri 6/6

10:51 am-11:37 pm

1 stop13h 46m

Lambert-St Louis

Mon 6/9

7:00 am-10:37 am

1 stop26h 37m

$334

BostonSt. Louis

BOS - STL

BOSSTL

Boston Logan Intl

Fri 5/9

6:00 am-9:15 am

2 stops28h 15m

Lambert-St Louis

Sun 5/11

10:10 am-11:29 pm

1 stop12h 19m

$339

ProvidenceSt. Louis

PVD - STL

PVDSTL

Providence-TFGreen

Tue 6/17

7:17 pm-11:59 pm

1 stop5h 42m

Lambert-St Louis

Sat 6/21

6:00 am-4:33 pm

2 stops9h 33m

$353

BostonSt. Louis

BOS - STL

BOSSTL

Boston Logan Intl

Thu 5/29

5:30 am-2:53 pm

2 stops10h 23m

Lambert-St Louis

Wed 6/4

8:10 am-9:49 pm

1 stop12h 39m

$357

ProvidenceSt. Louis

PVD - STL

PVDSTL

Providence-TFGreen

Wed 8/6

3:40 pm-10:05 pm

2 stops7h 25m

Lambert-St Louis

Sun 8/10

8:50 pm-1:15 pm

2 stops15h 25m

$368

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

Showing 1-10 of 25 results

Best time to book a flight from Rhode Island to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Rhode Island 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.

Cheapflights Insights

Everything you need to know about your flight from Rhode Island to St. Louis

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

Currently, August is the cheapest month in which you can book a flight from Rhode Island to St. Louis (average of $311). Flying from Rhode Island to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from RI to STL?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Rhode Island to St. Louis as you normally would.

Rainfall in St. Louis by month

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Louis

Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from Rhode Island to St. Louis to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

9,918 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Alaska Airlines

8.0

Very good

9,918 reviews

Alaska Airlines

8.0

Very good

9,918 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Southwest

8.0

Very good

4,286 reviews

Alaska Airlines

8.0

Very good

9,918 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Delta

8.0

Very good

7,920 reviews

Alaska Airlines

8.0

Very good

9,918 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

United Airlines

7.4

Good

8,685 reviews

Alaska Airlines

8.0

Very good

9,918 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

9,918 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

What airport do you fly into for flights to St. Louis from Rhode Island?
For a flight from Rhode Island to St. Louis, you will be flying into Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city.
What are the cheapest airlines to fly from Rhode Island to St. Louis one-way?
The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $143. However, be on the lookout for offers from Southwest and Spirit Airlines, as they are both options that can get you from Rhode Island to St. Louis for a low price.
Can I find deals for flights from Rhode Island to St. Louis that include hotel bookings?
Yes. In addition to deals on Rhode Island to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Rhode Island to St. Louis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Rhode Island to St. Louis.
Can I find deals for business class flights from Rhode Island to St. Louis?
Yes. Cheapflights offers flight deals from Rhode Island to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Rhode Island to St. Louis?
Currently, August is the cheapest month in which you can book a flight from Rhode Island to St. Louis (average of $311). Flying from Rhode Island to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Fenton

Maryland Heights

Fairview Heights

Collinsville

Wentzville

Eureka

St. Peters

Festus

Glencoe

Alton

Farmington

Browse thousands of different options on Cheapflights for your next trip

Top 3 airlines flying from Rhode Island to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$284	Average$386	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$289	Average$383	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$296	Average$386	FlexibilityNo cancel fee	On-time63%

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$143+ Cheap flights from Rhode Island to St. Louis (STL)

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 6/3. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Rhode Island to St. Louis with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Rhode Island to St. Louis

Keep the following information in mind while searching for Rhode Island to St. Louis flight deals. Data was last updated April 24, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Rhode Island to St. Louis

Cheapest flights from Rhode Island to St. LouisExplore the most affordable flight options available from Rhode Island to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2025.

Explore the most affordable flight options available from Rhode Island to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Rhode Island to St. Louis that are best for you.

Best time to book a flight from Rhode Island to St. Louis

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

Cheapflights Insights

Everything you need to know about your flight from Rhode Island to St. Louis

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

What is the cheapest time of day to fly from RI to STL?

Find hourly flight availability from Rhode Island to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 24, 2025.

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

Reviews of airlines servicing St. Louis

Related info for your journey

Find useful and relevant information for your journey from Rhode Island to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to St. Louis from Rhode Island?

What are the cheapest airlines to fly from Rhode Island to St. Louis one-way?

Can I find deals for flights from Rhode Island to St. Louis that include hotel bookings?

How can I find direct flights from Rhode Island to St. Louis?

Can I find deals for business class flights from Rhode Island to St. Louis?

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

Traveling to a place near Rhode Island?

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.

Alternative routes for Rhode Island to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Rhode Island to St. Louis

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Cheapest flights from Rhode Island to St. Louis
Explore the most affordable flight options available from Rhode Island to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2025.