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Cheap Flights from Missoula (MSO) to Chicago (ORD)

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      Travellers and cabin class, 1 Adult, Economy
      Envoy Air
      American Airlines
      United
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      Compare Missoula to Chicago O'Hare International flight deals

      Find the cheapest month or even day of the year to fly to Chicago O'Hare International

      Book the best Chicago O'Hare International fare with no extra fees

      Flight deals from Missoula to Chicago O'Hare International

      Looking for a cheap last-minute deal or the best return flight from Missoula Airport to Chicago O'Hare International Airport? If you want to travel next month, return fares start from $485. Find the lowest prices on one-way and return tickets right here.
      Chicago.$472 per passenger.Departing Thu, 24 Sep, returning Tue, 29 Sep.Return flight with United.Outbound direct flight with United departs from Missoula on Thu, 24 Sep, arriving in Chicago O'Hare International.Inbound direct flight with United departs from Chicago O'Hare International on Tue, 29 Sep, arriving in Missoula.Price includes taxes and charges.From $472, select.
      Chicago.$484 per passenger.Departing Wed, 30 Sep, returning Sat, 3 Oct.Return flight with United.Outbound indirect flight with United, departs from Missoula on Wed, 30 Sep, arriving in Chicago O'Hare International.Inbound indirect flight with United, departs from Chicago O'Hare International on Sat, 3 Oct, arriving in Missoula.Price includes taxes and charges.From $484, select.
      Chicago.$485 per passenger.Departing Sat, 3 Oct, returning Sat, 10 Oct.Return flight with United.Outbound indirect flight with United, departs from Missoula on Sat, 3 Oct, arriving in Chicago O'Hare International.Inbound indirect flight with United, departs from Chicago O'Hare International on Sat, 10 Oct, arriving in Missoula.Price includes taxes and charges.From $485, select.
      Chicago.$497 per passenger.Departing Sun, 20 Dec, returning Fri, 15 Jan.Return flight with Delta.Outbound indirect flight with Delta, departs from Missoula on Sun, 20 Dec, arriving in Chicago O'Hare International.Inbound indirect flight with Delta, departs from Chicago O'Hare International on Fri, 15 Jan, arriving in Missoula.Price includes taxes and charges.From $497, select.
      Chicago.$497 per passenger.Departing Sat, 5 Dec, returning Sat, 12 Dec.Return flight with United.Outbound indirect flight with United, departs from Missoula on Sat, 5 Dec, arriving in Chicago O'Hare International.Inbound indirect flight with United, departs from Chicago O'Hare International on Sat, 12 Dec, arriving in Missoula.Price includes taxes and charges.From $497, select.
      Chicago.$498 per passenger.Departing Tue, 12 Jan, returning Sat, 16 Jan.Return flight with Delta.Outbound indirect flight with Delta, departs from Missoula on Tue, 12 Jan, arriving in Chicago O'Hare International.Inbound indirect flight with Delta, departs from Chicago O'Hare International on Sat, 16 Jan, arriving in Missoula.Price includes taxes and charges.From $498, select.
      Chicago.$525 per passenger.Departing Sat, 7 Nov, returning Sat, 14 Nov.Return flight with United.Outbound indirect flight with United, departs from Missoula on Sat, 7 Nov, arriving in Chicago O'Hare International.Inbound indirect flight with United, departs from Chicago O'Hare International on Sat, 14 Nov, arriving in Missoula.Price includes taxes and charges.From $525, select.
      Chicago.$525 per passenger.Departing Wed, 3 Feb, returning Sun, 7 Feb.Return flight with Delta.Outbound indirect flight with Delta, departs from Missoula on Wed, 3 Feb, arriving in Chicago O'Hare International.Inbound indirect flight with Delta, departs from Chicago O'Hare International on Sun, 7 Feb, arriving in Missoula.Price includes taxes and charges.From $525, select.
      Chicago.$606 per passenger.Departing Fri, 27 Nov, returning Fri, 4 Dec.Return flight with United.Outbound indirect flight with United, departs from Missoula on Fri, 27 Nov, arriving in Chicago O'Hare International.Inbound indirect flight with United, departs from Chicago O'Hare International on Fri, 4 Dec, arriving in Missoula.Price includes taxes and charges.From $606, select.
      Chicago.$626 per passenger.Departing Fri, 12 Mar, returning Tue, 16 Mar.Return flight with United.Outbound indirect flight with United, departs from Missoula on Fri, 12 Mar, arriving in Chicago O'Hare International.Inbound indirect flight with United, departs from Chicago O'Hare International on Tue, 16 Mar, arriving in Missoula.Price includes taxes and charges.From $626, select.
      Chicago.$632 per passenger.Departing Tue, 30 Mar, returning Tue, 13 Apr.Return flight with United.Outbound indirect flight with United, departs from Missoula on Tue, 30 Mar, arriving in Chicago O'Hare International.Inbound indirect flight with United, departs from Chicago O'Hare International on Tue, 13 Apr, arriving in Missoula.Price includes taxes and charges.From $632, select.
      Chicago.$670 per passenger.Departing Thu, 8 Oct, returning Mon, 12 Oct.Return flight with United.Outbound direct flight with United departs from Missoula on Thu, 8 Oct, arriving in Chicago O'Hare International.Inbound direct flight with United departs from Chicago O'Hare International on Mon, 12 Oct, arriving in Missoula.Price includes taxes and charges.From $670, select.
      Chicago.$705 per passenger.Departing Fri, 2 Apr, returning Sat, 10 Apr.Return flight with Delta.Outbound indirect flight with Delta, departs from Missoula on Fri, 2 Apr, arriving in Chicago O'Hare International.Inbound indirect flight with Delta, departs from Chicago O'Hare International on Sat, 10 Apr, arriving in Missoula.Price includes taxes and charges.From $705, select.

      Find the cheapest month to fly from Missoula to Chicago O'Hare International

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Missoula to Chicago O'Hare International flights are currently cheapest in September.
      Sep
      from $471
      Oct
      from $485
      Nov
      from $525
      Dec
      from $497
      Jan
      from $498
      Feb
      from $525
      Mar
      from $625
      Apr
      from $705
      May
      Find prices
      Jun
      Find prices
      Jul
      Find prices
      Aug
      Find prices

      Direct flights from Missoula to Chicago O'Hare International

      American Airlines
      Envoy Air
      SkyWest Airlines
      United

      Missoula to Chicago O'Hare International: Alternative routes

      Compare routes from Missoula to Chicago below. You may find an airport to fly into that's cheaper, faster, or easier than Chicago O'Hare International.

      Chicago Midway

      14km from central Chicago
      Closest
      from $505
      Search flights

      Chicago O'Hare International

      25km from central Chicago
      Cheapest
      from $471
      Search flights

      Chicago Rockford

      127km from central Chicago
      Search flights

      Missoula to Chicago: Flight information

      The things to know before you go.
      Cheapest flight found$472
      Cheapest month to flySeptember
      Average flight time3 hrs, 41 mins
      Most popular airlineEnvoy Air
      Average flights per week31

      Finding cheap flights from Missoula to Chicago O'Hare International: Frequently asked questions

      The best price we found for a return flight from Missoula to Chicago O'Hare International is $471. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
      3 hours and 41 minutes is the average flight time from Missoula to Chicago O'Hare International.
      Envoy Air, American Airlines and United fly direct from Missoula to Chicago O'Hare International.
      As of September 2026, there are 31 flights per week flying from Missoula to Chicago O'Hare International.
      The cheapest month to fly from Missoula to Chicago O'Hare International is usually September.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Missoula Airport to Chicago O'Hare International Airport on Thursday, 24 September 2026.
      Yes – the average flight time is 3 hours and 41 minutes.
      We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Chicago O'Hare International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

      We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Chicago is around 40 days in advance, so don’t leave your flight to the last minute.

      Currently, United offers the cheapest flight tickets to Chicago O'Hare International.

      Travelling from Missoula Airport (MSO) to Chicago O'Hare International Airport (ORD): what you need to know

      • Around 3 hours 30 minutes is how long you can expect to be travelling on a direct flight from Missoula Airport to Chicago O'Hare International Airport.

      • Chicago's timezone is UTC-6, making Chicago one hour ahead of Missoula.

      • Flights from MSO to ORD start from 05:32 — the earliest with American Airlines. The latest departure is at 13:35 with American Airlines. In total, you can take your pick of 11 weekly Missoula Airport to Chicago O'Hare International Airport flights.

      • Get to the airport on time so you don't miss your MSO to ORD flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to prevent a last-minute sprint to your gate.

      • During popular months like July, you'll want to get to the airport earlier. Plan to arrive two hours before a domestic departure and four hours ahead of international flights whenever you're travelling during a peak period in general.

      • American Airlines is your gateway to discovering Chicago (and perhaps some other great corners of the United States!). Browse the direct flights from Missoula Airport to Chicago O'Hare International Airport offered by this popular airline.

      • American Airlines is the airline most travellers choose for this route.

      • The most punctual carrier offering MSO to ORD flights is United. Its services land without delay 70.0% of the time.

      • If you want to include a stop along the way, just uncheck 'Direct flights only' when searching for your ticket from Missoula Airport to Chicago O'Hare International Airport. These are the most popular stopovers between MSO and ORD:

        • Denver International Airport

        • Minneapolis St Paul Airport

        • Salt Lake City Airport

      Handy information about Missoula Airport (MSO)

      • MSO is located at 5225 Highway 10 West.

      • Missoula Airport earns top marks for its on-time performance. 83% of flights that take off from MSO reach their destination on time.

      • Central Missoula to Missoula Airport is approximately 11 kilometres. Depending on traffic, it'll take you about 15 minutes to get there if you're catching a taxi, ride-sharing or driving.

      • Planning to take public transport? You can expect a journey time of around 30 minutes.

      • Get your holiday off to a hassle-free start by staying near MSO. Whether you're catching an early flight from Missoula Airport to Chicago O'Hare International Airport or want to avoid feeling rushed, these stays are perfect:

      Arriving at Chicago O'Hare International Airport (ORD)

      Getting from Chicago O'Hare International Airport (ORD) to central Chicago

      • The street address for ORD is 10000 West O'Hare.

      • From Chicago O'Hare International Airport, Chicago is approximately 27 kilometres away. It takes around 30 minutes to drive to the centre.

      • If you're using public transport, expect a journey time of about 45 minutes.

      When to fly to Chicago O'Hare International Airport (ORD)

      • It's time to pick your dates for your flight from Missoula Airport to Chicago O'Hare International Airport. July is the busiest month to head to Chicago. If you like a more laid-back vibe, go in March.

      • When booking your flight from Missoula Airport to Chicago O'Hare International Airport, consider the kind of weather you like. July is the warmest month in Chicago, with temperatures ranging from 16ºC (61ºF) to 28ºC (82ºF).

      • Look for cheap tickets from MSO to ORD in January if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between -12ºC (10ºF) and 3ºC (37ºF) on average.

      Explore more of the United States

      • You've visited Chicago, now it's time to discover more of the United States. Journey around 451 kilometres south-east to Columbus to tick off its top sights. From Franklin Park Conservatory and Botanical Gardens to Whetstone Park / Park of Roses and Ohio Theatre, your itinerary will be busy.

      • If you're interested in discovering another well-known destination in the United States, consider Indianapolis, about 257 kilometres south-east of Chicago. Lucas Oil Stadium, Eiteljorg Museum and The Children's Museum of Indianapolis are the start of reasons to visit.

      Plan smart, explore more

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      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.