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Cheap Flights from Boise (BOI) to Chicago O'Hare International (ORD)

Compare Boise to Chicago O'Hare International flight deals

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

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Flight deals from Boise to Chicago O'Hare International

Looking for a cheap last-minute deal or the best return flight from Boise to Chicago O'Hare International? Find the lowest prices on one-way and return tickets right here.
Chicago.£168 per passenger.Departing Tue, 17 Feb, returning Thu, 19 Feb.Return flight with Alaska Airlines and Hawaiian Airlines.Outbound indirect flight with Alaska Airlines, departs from Boise on Tue, 17 Feb, arriving in Chicago O'Hare International.Inbound indirect flight with Hawaiian Airlines, departs from Chicago O'Hare International on Thu, 19 Feb, arriving in Boise.Price includes taxes and charges.From £168, select.
Chicago.£173 per passenger.Departing Sun, 25 Jan, returning Sun, 1 Feb.Return flight with Hawaiian Airlines.Outbound indirect flight with Hawaiian Airlines, departs from Boise on Sun, 25 Jan, arriving in Chicago O'Hare International.Inbound indirect flight with Hawaiian Airlines, departs from Chicago O'Hare International on Sun, 1 Feb, arriving in Boise.Price includes taxes and charges.From £173, select.
Chicago.£176 per passenger.Departing Thu, 5 Mar, returning Mon, 9 Mar.Return flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Boise on Thu, 5 Mar, arriving in Chicago O'Hare International.Inbound indirect flight with Alaska Airlines, departs from Chicago O'Hare International on Mon, 9 Mar, arriving in Boise.Price includes taxes and charges.From £176, select.
Chicago.£182 per passenger.Departing Fri, 9 Jan, returning Tue, 13 Jan.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Boise on Fri, 9 Jan, arriving in Chicago O'Hare International.Inbound indirect flight with Frontier Airlines, departs from Chicago O'Hare International on Tue, 13 Jan, arriving in Boise.Price includes taxes and charges.From £182, select.
Chicago.£186 per passenger.Departing Fri, 9 Jan, returning Tue, 13 Jan.Return flight with United.Outbound direct flight with United departs from Boise on Fri, 9 Jan, arriving in Chicago O'Hare International.Inbound direct flight with United departs from Chicago O'Hare International on Tue, 13 Jan, arriving in Boise.Price includes taxes and charges.From £186, select.
Chicago.£198 per passenger.Departing Thu, 26 Feb, returning Sun, 1 Mar.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Boise on Thu, 26 Feb, arriving in Chicago O'Hare International.Inbound indirect flight with Frontier Airlines, departs from Chicago O'Hare International on Sun, 1 Mar, arriving in Boise.Price includes taxes and charges.From £198, select.
Chicago.£200 per passenger.Departing Tue, 15 Sep, returning Tue, 22 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from Boise on Tue, 15 Sep, arriving in Chicago O'Hare International.Inbound indirect flight with Delta, departs from Chicago O'Hare International on Tue, 22 Sep, arriving in Boise.Price includes taxes and charges.From £200, select.
Chicago.£200 per passenger.Departing Thu, 9 Jul, returning Tue, 14 Jul.Return flight with Delta.Outbound indirect flight with Delta, departs from Boise on Thu, 9 Jul, arriving in Chicago O'Hare International.Inbound indirect flight with Delta, departs from Chicago O'Hare International on Tue, 14 Jul, arriving in Boise.Price includes taxes and charges.From £200, select.

Find the cheapest month to fly from Boise 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 Boise to Chicago O'Hare International flights are currently cheapest in February.
Dec
from £280
Jan
from £182
Feb
from £168
Mar
from £176
Apr
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May
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Jun
from £253
Jul
from £200
Aug
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Sep
from £200
Oct
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Nov
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Direct flights from Boise to Chicago O'Hare International

Boise to Chicago O'Hare International: Alternative routes

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

Boise to Chicago: Flight information

The things to know before you go.
Cheapest flight found£168
Cheapest month to flyFebruary
Average flight time3 hrs, 43 mins
Most popular airlineAmerican Airlines
Average flights per week129

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

The best price we found for a return flight from Boise to Chicago O'Hare International is £168. 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 43 minutes is the average flight time from Boise to Chicago O'Hare International.
American Airlines, Envoy Air and SkyWest Airlines fly direct from Boise to Chicago O'Hare International.
As of December 2025, there are 129 flights per week flying from Boise to Chicago O'Hare International.
The cheapest month to fly from Boise to Chicago O'Hare International is usually February.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Boise Airport to Chicago O'Hare International Airport on Tuesday, 17 February 2026.
Yes – the average flight time is 3 hours and 43 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, Alaska Airlines and United offer the cheapest flight tickets to Chicago O'Hare International.

Travelling from Boise Air Terminal (Gowen Field) Airport (BOI) to O'Hare International Airport (ORD): what you need to know

  • Around 3 hours 35 minutes is how long you can expect to be travelling on a direct flight from Boise Air Terminal (Gowen Field) Airport to O'Hare International Airport.

  • Chicago is one hour ahead of Boise and observes the UTC-5 timezone.

  • Every week, there are 20 Boise Air Terminal (Gowen Field) Airport to O'Hare International Airport flights. If you'd like to jet off as early as possible, select the 08:00 United Airlines flight. If you'd rather make the most of your day before flying, the latest flight is at 12:37 with United Airlines.

  • Give yourself enough time to catch your BOI to ORD flight. As a general rule, arrive two hours before international departures and an hour ahead for domestic flights.

  • Be prepared for longer queues during popular months such as July. Arriving up to four hours ahead of international flights and two hours for a domestic departure will help ensure a smooth travel experience.

  • United Airlines is your gateway to discovering Chicago (and maybe even some other exciting corners of United States!). Check out the direct flights from Boise Air Terminal (Gowen Field) Airport to O'Hare International Airport offered by this popular airline.

  • The airline with the highest booking volume on this route is United Airlines.

  • United Airlines is a leader in on-time performance for BOI to ORD flights, with 86.32% of services arriving on schedule.

  • We make it simple to book a flight with a stopover. To see your options for tickets from Boise Air Terminal (Gowen Field) Airport to O'Hare International Airport, uncheck 'Direct flights only.' Then, pick a flight that has a stop long enough to tour the city of your choice. Popular stopovers between BOI and ORD include:

    • Denver International Airport

    • Minneapolis-St. Paul International Airport

    • Salt Lake City International Airport

How to find the cheapest flights from Boise Air Terminal (Gowen Field) Airport (BOI) to O'Hare International Airport (ORD)

  • £91 is the best price for a one-way Boise Air Terminal (Gowen Field) Airport to O'Hare International Airport flight. A return flight starts at £168. These fares may change depending on demand and availability.

  • To pick up cheap tickets from BOI to ORD, book your journey nine months ahead of your departure.

  • Plan your trip for August. That's the cheapest month for flights from Boise Air Terminal (Gowen Field) Airport to O'Hare International Airport. If you're flexible on when you fly, try out the 'Whole month' tool to see the cheapest airfare across every month.

  • Save time searching for cheap flights from BOI to ORD by creating a Price Alert. You'll get an email or push notification on the app when a new discounted fare appears.

  • Lock in the right flight for you by using the filters. To see the 'Fastest,' 'Best' or 'Cheapest' flights from Boise Air Terminal (Gowen Field) Airport to O'Hare International Airport, use the 'Sort by' function. You can also filter by arrival and departure times, airline, and number of stops.

Handy information about Boise Air Terminal (Gowen Field) Airport (BOI)

  • The address for BOI is 3201 Airport Way.

  • Boise Air Terminal (Gowen Field) Airport earns top marks for on-time performance. 83.53% of flights that take off from BOI reach their destination without delay.

  • To reach Boise Air Terminal (Gowen Field) Airport from central Boise, it'll take about 20 minutes if you're going by car. Of course, this depends on traffic. It's approximately 11 miles from the airport to the city centre.

  • You can expect a trip time of around 1 hour 35 minutes on public transport.

  • Get your holiday off to a relaxed start by staying near BOI. Whether you've booked an early flight from Boise Air Terminal (Gowen Field) Airport to O'Hare International Airport or just don't want to be rushed, these stays are perfect:

Arriving at O'Hare International Airport (ORD)

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

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

  • O'Hare International Airport to central Chicago has a drive time of about 35 minutes. It's approximately 25 miles away.

  • If you're travelling on public transport, expect a journey of around 55 minutes.

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

  • The quietest month for a flight from Boise Air Terminal (Gowen Field) Airport to O'Hare International Airport is January, while August is the busiest. Pick the best time to visit Chicago based on whether you prefer a bustling atmosphere or a more laid-back vibe.

  • The warmest month in Chicago is July, with the temperature ranging between 15ºC (59ºF) and 29ºC (84ºF). Book your flights from Boise Air Terminal (Gowen Field) Airport to O'Hare International Airport in this month if you like this kind of weather.

  • January has average temperatures of between -12ºC (10ºF) and 3ºC (37ºF). Search for cheap tickets from BOI to ORD sometime then if you like travelling in cooler conditions.

Explore more of United States

  • Columbus is just one of the many cities in United States waiting to be discovered after you've experienced Chicago. Around 280 miles away to the south-east, its best attractions include Franklin Park Conservatory and Botanical Gardens, Ohio Statehouse and German Village.

  • If you want to check out another well-known destination in United States, consider Indianapolis, about 160 miles south-east of Chicago. The Children's Museum of Indianapolis, Indianapolis Museum of Art and Indianapolis Zoo are key highlights.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.