Cheap flights from Rapid City Regional to Chicago O'Hare International

Compare Rapid City Regional to Chicago O'Hare International flight deals

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Flight deals from Rapid City Regional to Chicago O'Hare International

Looking for a cheap last-minute deal or the best return flight from Rapid City Regional to Chicago O'Hare International? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Rapid City Regional 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 Rapid City Regional to Chicago O'Hare International flights are currently cheapest in April.

Direct flights from Rapid City Regional to Chicago O'Hare International

Rapid City Regional to Chicago O'Hare International: Alternative routes

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

Rapid City to Chicago: Flight information

The things to know before you go.
Cheapest flight found$247
Cheapest month to flyMay
Average flight time2 hrs, 26 mins
Most popular airlineUnited
Average flights per week69

Finding cheap flights from Rapid City Regional to Chicago O'Hare International: Frequently asked questions

The best price we found for a return flight from Rapid City Regional to Chicago O'Hare International is $264. 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.
2 hours and 26 minutes is the average flight time from Rapid City Regional to Chicago O'Hare International.
United, Envoy Air and American Airlines fly direct from Rapid City Regional to Chicago O'Hare International.
As of March 2026, there are 69 flights per week flying from Rapid City Regional to Chicago O'Hare International.
The cheapest month to fly from Rapid City Regional to Chicago O'Hare International is usually April.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Rapid City Regional Airport to Chicago O'Hare International Airport on Friday, 10 April 2026.
Yes – the average flight time is 2 hours and 26 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 Rapid City Regional Airport (RAP) to O'Hare International Airport (ORD): what you need to know

  • Around 2 hours 15 minutes is how long you can expect to be travelling on a direct flight from Rapid City Regional Airport to O'Hare International Airport.

  • Chicago is one hour ahead of Rapid City and is in the UTC-5 timezone.

  • Each week, there are 19 Rapid City Regional Airport to O'Hare International Airport flights. If you prefer to get going early, go for the 09:50 United Airlines flight. If you're eager to make the most of your day before you fly, the latest flight is at 17:00 with United Airlines.

  • Get to the airport on time so you don't miss your RAP 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.

  • You can expect longer queues in popular months such as August. Arriving up to four hours ahead of an international flight and two hours for a domestic departure is a good idea.

  • American Airlines is your gateway to exploring Chicago (and perhaps some other exciting parts of United States!). Browse the direct flights from Rapid City Regional Airport to O'Hare International Airport offered by this popular carrier.

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

  • United Airlines is the most punctual carrier that operates RAP to ORD flights, with 69.44% of its services arriving as scheduled.

  • Think about adding a stopover when booking your ticket from Rapid City Regional Airport to O'Hare International Airport. Simply deselect 'Direct flights only' to break up your journey, or perhaps explore a new destination along the way. Here are some options between RAP and ORD:

    • Minneapolis-St. Paul International Airport

    • Denver International Airport

    • Dallas/Fort Worth International Airport

How to find the cheapest flights from Rapid City Regional Airport (RAP) to O'Hare International Airport (ORD)

  • $247 is the lowest price for a one-way Rapid City Regional Airport to O'Hare International Airport flight. Return flights start from $264. These prices may change depending on availability.

  • Score cheap tickets from RAP to ORD by booking at least nine months ahead. Based on our research, that's the sweet spot for finding the biggest deals.

  • The cheapest month for flights from Rapid City Regional Airport to O'Hare International Airport is August. Use the 'Whole month' tool to find the lowest airfares if you have a flexible schedule.

  • Finding cheap flights from RAP to ORD is a piece of cake with Price Alerts. Simply set up one of these automatic alerts and we'll get in touch as soon as a lower fare pops up.

  • Select your preferred arrival and departure times, number of stops and airlines with the filters. Or sort your results by 'Cheapest' to get the best deals on flights from Rapid City Regional Airport to O'Hare International Airport.

Handy information about Rapid City Regional Airport (RAP)

  • You'll find RAP at 4550 Terminal Road, Suite 102.

  • Of the departures from Rapid City Regional Airport, 77.55% arrive as scheduled at their destination.

  • Central Rapid City to Rapid City Regional Airport is around 18 kilometres. Depending on traffic, it'll take you about 20 minutes to get there if you're ride-sharing, catching a cab or driving.

  • Get your flight from Rapid City Regional Airport to O'Hare International Airport off to a stress-free start. Just a short drive from RAP, spend the night in La Quinta Inn & Suites by Wyndham Rapid City and be well-rested for the journey ahead.

Arriving at O'Hare International Airport (ORD)

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

  • You'll find ORD at 10000 West O'Hare.

  • From O'Hare International Airport, Chicago is approximately 40 kilometres away. It takes around 35 minutes to reach the centre driving.

  • When travelling on public transport, expect a journey of roughly 55 minutes.

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

  • The quietest month for a flight from Rapid City Regional Airport to O'Hare International Airport is January, while August is the busiest. Choose the best time to visit Chicago based on whether you prefer a more relaxed vibe or a faster pace.

  • Before locking in your flight from Rapid City Regional Airport to O'Hare International Airport, think about the type of weather you like. July is the warmest month in Chicago, with the temperature ranging from 15ºC (59ºF) to 29ºC (84ºF).

  • January has average temperatures of between -12ºC (10ºF) and 3ºC (37ºF). Search for cheap tickets from RAP to ORD sometime around then if you want to travel when it's cooler.

Explore more of United States

  • Chicago has its own special appeal, but there are so many other corners of United States just waiting to be explored. About 451 kilometres south-east of Chicago, a trip to Columbus will keep your itinerary packed. Don't miss top attractions like Franklin Park Conservatory and Botanical Gardens, Ohio Statehouse and German Village.

  • Around 257 kilometres south-east of Chicago, Indianapolis is another essential stop in United States. Experience this destination's highlights firsthand at The Children's Museum of Indianapolis, Indianapolis Museum of Art and Indianapolis Zoo.

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