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$367+ Cheap flights from Springfield, IL to Denver (SPI - DEN)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
SPI — DEN
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheap flight deals from Springfield to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Springfield (SPI) to Denver (DEN). 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 July 29, 2025.

Round-trip from

$367
(American Airlines)

Popular in

December

Cheapest in

October

Average price

$474
From Springfield Capital to Denver Intl
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($46 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
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Find flight deals from Springfield to Denver

Cheapest flights from Springfield to Denver
Explore the most affordable flight options available from Springfield to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This American Airlines deal was found by Cheapflights users on 7/26. 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 9/51:14 pmSPI - DEN
1 stop6h 19mAmerican Airlines
Sun 9/79:46 amDEN - SPI
1 stop7h 13mAmerican Airlines
Deal found 7/26$367

Cheapflights Fare Finder

 
Customize your flight search to find flights from Springfield to Denver 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 July 29, 2025.
Use the filters below to find and compare flights from Springfield to Denver that are best for you.

Fly from

Springfield

Fly to

Denver

Route

Depart

Return

Price

SpringfieldDenver

SPI - DEN

SPIDEN

Springfield Capital

Fri 9/5

1:14 pm-6:33 pm

1 stop6h 19m

Denver Intl

Sun 9/7

9:46 am-5:59 pm

1 stop7h 13m

$367

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/26

Best time to book a flight from Springfield to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Springfield 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 Springfield to Denver

What is the cheapest month to book a flight from Springfield, Illinois to Denver?

Currently, October is the cheapest month in which you can book a flight from Springfield, Illinois to Denver (average of $197). Flying from Springfield, Illinois to Denver in March is currently the most expensive (average of $278). 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.

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated July 29, 2025.
Read through reviews of airlines operating flights from Springfield to Denver, such as American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
10,000 reviews

Overall

7.2

Food

6.5

Crew

8.0

Boarding

7.5

Entertainment

6.9

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Andrew,May 2025

LAX - MIA

2 hour delay. Discovered an engine problem late, we boarded the plane and they asked us to come off. To add insult to injury nothing was given to passengers to make amends. No free drink. No extra food or snacks. No free WiFi. Gimme a break
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Overall

7.2

Food

6.5

Crew

8.0

Boarding

7.5

Entertainment

6.9

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Andrew,May 2025

LAX - MIA

2 hour delay. Discovered an engine problem late, we boarded the plane and they asked us to come off. To add insult to injury nothing was given to passengers to make amends. No free drink. No extra food or snacks. No free WiFi. Gimme a break

Related info for your journey

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

  • What is the cheapest airline to fly from Springfield, Illinois to Denver round-trip?

    According to our current data, American Airlines ($367), offers the cheapest pricing from Springfield, Illinois to Denver. American Airlines is priced at 12% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Springfield to Denver that include hotel bookings?

    Yes. In addition to deals on Springfield to Denver flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Springfield to Denver?

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

  • Can I find deals for business class flights from Springfield to Denver?

    Yes. Cheapflights offers flight deals from Springfield to Denver 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 Springfield, Illinois to Denver?

    Currently, October is the cheapest month in which you can book a flight from Springfield, Illinois to Denver (average of $197). Flying from Springfield, Illinois to Denver in March is currently the most expensive (average of $278). 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

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Westminster
Black Hawk
Winter Park
Lakewood
Greeley
Cripple Creek
Brighton
Silverthorne
Golden
Thornton
Frisco
Grand Lake
Manitou Springs
Central City
Fort Morgan
Glendale
Copper Mountain
Wheat Ridge
Longmont
Broomfield

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Alternative routes for Springfield to Denver

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Springfield to Denver

Discover the top airline that operate flights from Springfield to Denver. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$286Average$386FlexibilityNo cancel feeOn-time71%

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