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Delaware

$54+ Cheap flights from St. Louis (STL) to Delaware

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 12/18. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ILG
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
1 adult, Economy
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Cheap flight deals from St. Louis to Delaware

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Delaware (USDE). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 21, 2024.

Find flight deals from St. Louis to Delaware

Cheapest flights from St. Louis to Delaware
Explore the most affordable flight options available from St. Louis to Delaware. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2024.

This CheapOair deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/45:02 pmSTL - PHL
1 stop17h 46mFrontier
Sat 12/710:59 pmPHL - STL
1 stop25h 25mFrontier
Deal found 11/20$118
This CheapOair deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/54:26 pmSTL - PHL
1 stop6h 40mMultiple Airlines
Sun 12/810:59 pmPHL - STL
1 stop25h 25mMultiple Airlines
Deal found 11/21$197
This American Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/186:00 amSTL - PHL
Nonstop2h 12mAmerican Airlines
Wed 12/1810:37 amPHL - STL
1 stop9h 53mAmerican Airlines
Deal found 11/20$299
This Southwest deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/119:00 amSTL - PHL
Nonstop2h 05mSouthwest
Sat 12/142:45 pmPHL - STL
Nonstop2h 30mSouthwest
Deal found 11/20$328
This Delta deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/245:17 pmSTL - PHL
1 stop6h 35mDelta
Mon 12/306:00 amPHL - STL
1 stop11h 59mDelta
Deal found 11/20$392
This Cheapflightsfares deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/215:21 pmSTL - PHL
1 stop5h 50mSpirit Airlines
Sun 11/246:11 amPHL - STL
1 stop11h 15mSpirit Airlines
Deal found 11/19$404
This United Airlines deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/611:20 amSTL - PHL
1 stop5h 09mUnited Airlines
Mon 12/92:36 pmPHL - STL
2 stops22h 43mUnited Airlines
Deal found 11/19$524
This American Airlines deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/66:00 amSTL - SBY
1 stop4h 33mAmerican Airlines
Tue 12/1011:58 amSBY - STL
1 stop6h 24mAmerican Airlines
Deal found 11/21$690

Find flights from St. Louis to Delaware within your budget

Customize your flight search to find flights from St. Louis to Delaware 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, Cheapflights users made 2,612,795 searches. Data last updated November 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Wed 12/4

5:02 pm-11:48 am

1 stop17h 46m

Philadelphia

Sat 12/7

10:59 pm-11:24 pm

1 stop25h 25m

$118

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Thu 1/30

3:48 pm-9:49 pm

1 stop29h 01m

Philadelphia

Sat 2/1

10:18 pm-11:31 pm

1 stop26h 13m

$196

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Sun 12/15

4:26 pm-8:45 am

1 stop15h 19m

Philadelphia

Mon 12/16

2:45 pm-3:21 pm

3 stops25h 36m

$283

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Wed 12/18

6:00 am-9:12 am

Nonstop2h 12m

Philadelphia

Wed 12/18

10:37 am-7:30 pm

1 stop9h 53m

$299

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Wed 12/11

9:00 am-12:05 pm

Nonstop2h 05m

Philadelphia

Sat 12/14

2:45 pm-4:15 pm

Nonstop2h 30m

$328

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Wed 12/18

5:57 pm-11:19 pm

1 stop4h 22m

Philadelphia

Fri 1/3

6:00 am-9:33 am

1 stop4h 33m

$386

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Thu 2/13

10:18 am-5:25 pm

1 stop6h 07m

Philadelphia

Sun 2/16

6:30 am-10:47 am

1 stop5h 17m

$406

St. LouisSalisbury

STL - SBY

STLSBY

Lambert-St Louis

Fri 12/6

6:00 am-11:33 am

1 stop4h 33m

Salisbury-Ocean City

Tue 12/10

11:58 am-5:22 pm

1 stop6h 24m

$690

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Wed 12/18

3:53 pm-1:22 am

1 stop8h 29m

$54

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Thu 12/5

4:26 pm-12:06 am

1 stop6h 40m

$99

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/21

Showing 1-10 of 15 results
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Best time to book a flight from St. Louis to Delaware

Have a flexible travel schedule? Discover the best time to fly to Delaware 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 to Delaware

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

Rainfall in Delaware by month

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

In terms of precipitation, rainfall in Delaware ranges from 2.9 - 4.3 inches per month. July is typically the wettest month, when rainfall can reach 4.3 in. February is typically the driest time to visit Delaware when rainfall is around 2.9 in.

Temperature in Delaware by month

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

If weather is an important factor for your trip to Delaware, 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 77.0 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 Delaware

Get insights into the airlines that provide service to Delaware. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Delaware. Reviews last updated November 21, 2024.
Read through reviews of airlines operating flights from St. Louis to Delaware, such as Frontier, Spirit Airlines and American Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,005 reviews

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Entertainment

7.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.1
Very good
5,005 reviews
Southwest
8.1
Very good
5,005 reviews

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Entertainment

7.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Delta
8.0
Very good
8,755 reviews
Southwest
8.1
Very good
5,005 reviews

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Entertainment

7.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

United Airlines
7.4
Good
9,172 reviews
Southwest
8.1
Very good
5,005 reviews

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Entertainment

7.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
5,005 reviews

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Entertainment

7.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Spirit Airlines
6.3
Okay
8,169 reviews
Southwest
8.1
Very good
5,005 reviews

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Entertainment

7.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Delaware. 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 from for flights from St. Louis to Delaware?

    Located just 12.7 mi from the city center, Lambert-St Louis (STL) is the airport most travelers will use when flying to Delaware from St. Louis.

  • What are the cheapest airlines to fly from St. Louis to Delaware one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $54. Users have also found prices from $120 and $157 on Spirit Airlines and American Airlines, respectively.

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

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

  • How can I find direct flights from St. Louis to Delaware?

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

  • Can I find deals for business class flights from St. Louis to Delaware?

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

See more FAQs

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Alternative routes for St. Louis to Delaware

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