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 2/15. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ILG
Dec 28 — Jan 41
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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 December 23, 2024.

Round-trip from

$118
(CheapOair)

One-way from

$54
(Cheapflightsfares)
From Lambert-St Louis to Delaware
One-way flight from Lambert-St Louis to Delaware

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 December 23, 2024.

This FlightHub deal was found by Cheapflights users on 12/22. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/314:27 pmSTL - PHL
1 stop6h 38mMultiple Airlines
Sat 1/47:30 amPHL - STL
1 stop28h 40mMultiple Airlines
Deal found 12/22$327
This FlightHub deal was found by Cheapflights users on 12/22. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/314:27 pmSTL - PHL
1 stop6h 38mSpirit Airlines
Sun 1/56:05 amPHL - STL
1 stop10h 16mSpirit Airlines
Deal found 12/22$335
This Gotogate deal was found by Cheapflights users on 12/21. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2210:09 pmSTL - PHL
1 stop30h 00mFrontier
Mon 12/3010:59 pmPHL - STL
1 stop25h 29mFrontier
Deal found 12/21$356
This Delta deal was found by Cheapflights users on 12/22. 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 12/315:17 pmSTL - PHL
1 stop6h 35mDelta
Wed 1/15:28 pmPHL - STL
1 stop5h 15mDelta
Deal found 12/22$376
This American Airlines deal was found by Cheapflights users on 12/22. 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.
Tue 12/315:45 amSTL - PHL
1 stop6h 16mAmerican Airlines
Wed 1/17:14 pmPHL - STL
Nonstop2h 45mAmerican Airlines
Deal found 12/22$402
This United Airlines deal was found by Cheapflights users on 12/22. 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.
Tue 12/316:25 amSTL - PHL
1 stop6h 54mUnited Airlines
Sun 1/510:32 amPHL - STL
1 stop24h 22mUnited Airlines
Deal found 12/22$562
This Southwest deal was found by Cheapflights users on 12/22. 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.
Mon 12/307:55 amSTL - PHL
Nonstop2h 05mSouthwest
Sat 1/47:25 pmPHL - STL
Nonstop2h 30mSouthwest
Deal found 12/22$758

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 2,558,603 searches. Data last updated December 23, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Wed 1/22

5:05 pm-2:06 pm

1 stop20h 01m

Philadelphia

Sat 1/25

10:18 pm-7:22 am

1 stop10h 04m

$118

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Thu 1/9

4:28 pm-2:47 pm

1 stop21h 19m

Philadelphia

Mon 1/13

6:39 am-2:43 pm

2 stops33h 04m

$221

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Tue 1/14

3:48 pm-7:05 pm

1 stop26h 17m

Philadelphia

Thu 1/16

6:08 am-2:43 pm

1 stop9h 35m

$235

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Tue 1/21

6:00 am-9:10 am

Nonstop2h 10m

Philadelphia

Tue 1/28

1:37 pm-10:09 pm

1 stop9h 32m

$302

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Tue 1/21

6:05 pm-9:10 pm

Nonstop2h 05m

Philadelphia

Tue 1/28

8:40 am-10:20 am

Nonstop2h 40m

$338

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Fri 1/17

5:00 pm-12:49 am

1 stop6h 49m

Philadelphia

Mon 1/20

7:19 pm-11:38 pm

1 stop5h 19m

$358

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Wed 1/15

8:00 am-5:35 pm

1 stop8h 35m

Philadelphia

Wed 1/22

6:15 am-3:38 pm

2 stops10h 23m

$422

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Sat 2/15

8:52 pm-7:38 am

1 stop9h 46m

$54

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Tue 4/29

7:27 pm-9:50 am

1 stop13h 23m

$116

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Thu 2/6

9:50 am-11:27 pm

2 stops12h 37m

$138

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

Showing 1-10 of 15 results
1
2

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 December 23, 2024.
Read through reviews of airlines operating flights from St. Louis to Delaware, such as Frontier, Delta and Spirit Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
4,780 reviews

Comfort

8.1

Food

7.2

Crew

8.7

Entertainment

7.7

Overall

8.1

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

8.1
Very good
4,780 reviews
8.1
Very good
4,780 reviews

Comfort

8.1

Food

7.2

Crew

8.7

Entertainment

7.7

Overall

8.1

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

8.0
Very good
8,588 reviews
8.1
Very good
4,780 reviews

Comfort

8.1

Food

7.2

Crew

8.7

Entertainment

7.7

Overall

8.1

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

7.4
Good
9,020 reviews
8.1
Very good
4,780 reviews

Comfort

8.1

Food

7.2

Crew

8.7

Entertainment

7.7

Overall

8.1

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

7.2
Good
10,000 reviews
8.1
Very good
4,780 reviews

Comfort

8.1

Food

7.2

Crew

8.7

Entertainment

7.7

Overall

8.1

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

6.3
Okay
8,113 reviews
8.1
Very good
4,780 reviews

Comfort

8.1

Food

7.2

Crew

8.7

Entertainment

7.7

Overall

8.1

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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 $116 and $139 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.

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