$79 Find Cheap Flights from Illinois to Wyoming

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Illinois to Wyoming departing on 9/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Good to know

Low seasonNovember
Cheapest flight$79
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly with an average 5% increase in price.
Flight from St. Louis to Denver

FAQs for booking flights from Illinois to Wyoming

  • How does KAYAK find such low prices on flights from Illinois to Wyoming?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Wyoming.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Wyoming?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Illinois to Wyoming is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Illinois to Wyoming?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Illinois to Wyoming with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Wyoming?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Illinois to Wyoming up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airlines fly most frequently to Wyoming?

    Illinois and Wyoming are connected by different airlines. The airlines that fly that route the most regularly are American Airlines (26 flights per week), United Airlines (19 flights per week), and Lufthansa (13 flights per week).

  • How many airports are there in Wyoming?

    There are 9 airports in Wyoming. The busiest airport is Jackson Hole Airport (JAC), with 66% of all flights arriving there.

  • Which is the cheapest airport to fly into in Wyoming?

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Wyoming is Jackson Hole Airport (JAC), with an average flight price of $214.

  • What is the cheapest day to fly to Wyoming?

    Based on KAYAK data, the cheapest day to fly to Wyoming is Tuesday where round-trip tickets can be as cheap as $424. On the other hand, the most expensive day to fly is Thursday, where round-trip prices are $497 on average.

  • What is the cheapest time of day to fly to Wyoming?

    The cheapest time of day to fly to Wyoming is generally in the afternoon, when round-trip flights cost $418 on average. Morning departures are around 4% more expensive than evening flights, on average. The most expensive time of day to fly to Wyoming is generally in the morning, which is peak travel time and where the average cost of a ticket is $480.

  • What is the cheapest flight to Wyoming?

    The cheapest ticket to Wyoming from Illinois found in the last 5 days was to Jackson, at $355 round-trip. The most popular route is Chicago O'Hare Intl Airport (ORD) to Jackson (JAC) and the cheapest round-trip airline ticket found on this route in the last 5 days was $355.

  • What is the cheapest month to fly from Illinois to Wyoming?

    The cheapest month for flights from Illinois to Wyoming is August, when tickets cost $106 (return) on average. On the other hand, the most expensive months are May and April, when the average cost of round-trip tickets is $221 and $220 respectively.

  • How far in advance should I book a flight from Illinois to Wyoming?

    To get a below average price on the flight from Illinois to Wyoming, you should book around 5 weeks before departure, which saves you about 41% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

  • How many cities have direct flights to Wyoming?

    From Illinois, there are direct flights to Wyoming from 1 city. This city is Chicago and there are 65 direct flights each week.

  • How many direct flights to Wyoming are there each day?

    There are around 10 direct flights from within Illinois to Wyoming every day. Most flights (52%) depart in the afternoon.

  • How many direct flights to Wyoming are there each week?

    Each week there are around 65 direct flights from within Illinois to Wyoming. The most common day for departures is Friday, with 17% of flights taking off on this day.

  • How long is the flight to Wyoming?

    An average nonstop flight from Illinois to Wyoming takes 7h 04m, covering a distance of 1031 miles. The shortest route is St. Louis (STL) to Denver (DEN) with an average flight time of 2h 15m.

  • How many long-haul flights are there to Wyoming each week?

    There are not any long-haul (6-12 hour flight duration) or medium-haul (3-6 hour flight duration) flights to Wyoming. Instead, there are 65 short-haul flights (up to 3 hour flight duration), with the most arriving from Chicago.

  • What are the most popular destinations in Wyoming?

    Based on KAYAK flight searches, the most popular destination is Denver (69% of total searches to Wyoming). The next most popular destinations are Salt Lake City (21%) and Jackson (9%). Searches for flights to Cody (1%), to West Yellowstone (0%) and to Casper (0%) are also popular.

Reviews of the top airlines flying from Illinois to Wyoming

 
Need help choosing which airline to fly with from Illinois to Wyoming? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9805 reviews
7.1Entertainment
7.3Comfort
6.6Food
7.7Boarding
8.1Crew
Airline reviews

Boarded early; and arrived home 40 mins early. After a long flight, it’s nice to be back home early. These flights have no amenities; no snacks. So need to bring your own

10.0 ExcellentJanice, Jun 2026
ORD - ILM
Read more United Airlines reviews

Boarded early; and arrived home 40 mins early. After a long flight, it’s nice to be back home early. These flights have no amenities; no snacks. So need to bring your own

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

boarded early to only find out that flight would sit at gate for 45 min to an hour. Landed in chicago and sat on runway for over an hour before got to gate. Total delay was extensive for a 45 min flight door to door.

Several missed and almost missed connections. It felt like everything was being patched together last minute without enough resources and it ended up being an extremely stressful experience that basically ruined our weekend on the west coast. What a waste.

Crew was friendly. Seats are too narrow, particularly when a big person is in the adjacent seat, but I understand this is due to smaller planes usually flight into Lincoln. I have experienced several flight delays going out and coming into Lincoln airport, I say maybe 50% or higher of the flights I've taken out of this airport have been delayed.

Great flight. Boarded efficiently. Arrived early at CLT. There was no in flight entertainment on this aircraft. Great crew.

The seat was comfortable. There was a lot of turbulence. If it weren't for that,it would have been okay.

Poor communication, flight was delayed for preventable reasons. I missed my connection.

It was so much better than expected, Ohare is not such a pleasant experience but American Airlines with the new, clean aeroplane and free Wi-Fi was outstanding and the crew so pleasant and helpful.

It wa sort of on time; the cab was left with some trash

American Airlines II: Delay Boogaloo. Multiple gate changes, delays, boarded and then MORE delays. I hate to say this won’t matter, but posting stuff about major corporations in 2026 is a post-modern “scream into the void.” Was multiple hours late coming home, so there you go.

The airplane was an old model, the overhead didn’t have enough room for people’s items and made boarding and boarding disappointing and stressful. Crew allowed passengers to bring more than the permitted baggage sizes.

Original flight was on time, then late, then changed gates...4 times. Once our newest plane came in, it was fine.

I almost missed my flight and they helped me out enormously

Delays experienced in boarding/take off due to incoming plane delayed. However, the boarding time/depart time in the app was significantly delayed in providing these updates. Usually not updated until an hour after we should have already boarded. Poorly managed.

Moved to earlier flight which unexpectedly had maintenance issues initially indicated as quick fix to ultimately plane changes. Moved back to original flight, also delayed. In all cases customer updates and communication very unclear, no updates on drivers for delays.

Typical AA - late by 90+ mn. Gate changed twice... Changed the departure time 6 times No explanation, no communication on reasons for delay I travel with AA twice a year... and it is consistently very poor.. I will continue to use AA only when i have to.

The gate got changed several times and the flight was delayed over an hour. Awful experience

Everything you need to know for your flight to Wyoming

Cabin class types available on flights to Illinois

Cabin classes available on flights to Illinois. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.