The cheapest times to fly from STN to CMI are

  • October 29th to June 10th (except the weeks of December 17th, December 24th, February 12th, April 9th, April 30th, and May 21st)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from STN to CMI is early November. Prices can be as high as $5024 for Tuesday flights during early to mid July, or as low as $922 for Sunday flights around early November.


When to Fly to Champaign

Flying from London (STN) to Champaign/Urbana, IL (CMI) will usually cost between $1040 to $3739 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early November with an average ticket price of $1077. Due to high demand the most expensive time to fly is early to mid July, with an average price of $5024. Planning your trip to low-cost times can easily save you $3947 on economy flights and even more on first-class flights. Generally, any price below $1240 can be considered a good price for a round-trip STN to CMI flight.

See below for a graph of average weekly prices for the STN to CMI route. All prices are for round-trip tickets in USD.

STN to CMI Flight Prices

Compared to other flights, the STN to CMI flight is slightly more expensive than the average and costs less than the average flight leaving from London. The average price per mile (for a direct flight) is $0.19, which is below average.


Flight Prices by Day of the Week

Sunday is usually the cheapest day to fly to CMI, and Wednesday the cheapest day to fly back into STN. Tuesdays are the most expensive days to fly to Champaign, and Saturdays are the most expensive days to return to London. Selecting flights on the least expensive days could save you up to $2330 (46%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Sunday and returning a week later will cost an average of $1233. Return trip prices are from the CMI to STN flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from STN to CMI can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 8 hour 17 minutes may not be realistic.


Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is not usually a nonstop flight from STN to CMI while comparing.

Destination alternative #1: Chicago O’Hare International Airport (ORD) in Chicago, IL

  • 135 miles (217 km) away from CMI
  • Usually 43.95% less expensive than CMI
  • 1-layover flights available

See STN to ORD flights

Destination alternative #2: Indianapolis International Airport (IND) in Indianapolis, IN

  • 107 miles (172 km) away from CMI
  • Usually 2.02% less expensive than CMI
  • 2-layover flights available

See STN to IND flights

Destination alternative #3: St Louis Lambert International Airport (STL) in St. Louis, MO

  • 143 miles (230 km) away from CMI
  • Usually 1.17% less expensive than CMI
  • 2-layover flights available

See STN to STL flights


Flight Hacking STN to CMI

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from STN to CMI — but Champion Traveler does!

Hack #1: Mulhouse (STN > BSL > CMI)

  • Price for both tickets: $850
  • Average savings: $391 (31.49%)

See STN to BOS flights

Hack #2: Boston, MA (STN > BOS > CMI)

  • Price for both tickets: $902
  • Average savings: $338 (27.26%)

See STN to BSL flights

Hack #3: Chicago, IL (STN > ORD > CMI)

  • Price for both tickets: $910
  • Average savings: $330 (26.61%)

See STN to ORD flights


Flight Questions Answered

Still have questions about flying from STN to CMI? We’ve got answers.

Which airlines fly this route?

You can find 13 major airlines flying this route most often: Air Canada, Air France, American, British Airways, Eurowings, Finnair, Iberia, Icelandair, KLM, Lufthansa, SAS, SWISS, United, and potentially more during busy seasons.

How far away is it from University of Illinois/Willard Airport to London Stansted Airport?

The distance between the two airports is roughly 4060 miles or 6534 kilometers.

How long does it take to fly from STN to CMI?

The real-world flight time for a nonstop STN to CMI flight is about 8 hour 17 minutes.

How many flights go between London and Champaign/Urbana, IL?

It depends on the day of the week and the date, but a typical day might have around 7 available flights from STN to CMI.


Airport Location Info


Departing Airport

Origination codeSTN
Origination airport nameLondon Stansted Airport
Countrythe United Kingdom

Return Airport

Destination codeCMI
Destination airport nameUniversity of Illinois/Willard Airport
CityChampaign/Urbana, IL
Countrythe United States


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.