Chicago to Rapid City flights

Routavio compares airline fares from several flight booking sites. The lowest one-way fare it found for Chicago to Rapid City is €134 with Allegiant Air (checked on 16 Oct 2026).

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Lowest observed

€134

Average observed

€253

Cheapest month

January 2027

Last checked

23 Oct 2026

Observed fares. Prices may change.

Your next trip, last seen at €134

Lowest observed

10 Jan 2027

Allegiant Air · 1 stop · One way

Cheapest observed day · Last checked: 16 Oct 2026

Departure

12:42

When to fly

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The lowest fare we observed for each month. Open a month to see its days, then pick your outbound and return. A day with no price is one we will search for you.

One-way fare

One-way fare · No data: click and we will search

Lowest observed: €134, departing 10 Jan 2027 (Last checked: 16 Oct 2026)One-way fareCheck live prices for this route
Airlines seen: Allegiant Air, Frontier Airlines, United Airlines
Typical journey time: 9h 30m

Short answer

Routavio has seen Allegiant Air fares from Chicago to Rapid City. The lowest fare Routavio's own searches returned is €134, seen on 16 Oct 2026. The average across the fares we caught is €253. January 2027 is the cheapest month in our observations, at €134. These are prices Routavio's searches returned on the dates shown, not quotes; run a live search for today's fare.

About this route

Explore the fares we observed from Chicago to Rapid City. Prices move often, so pick your dates to see the latest options.

Route distance: 1,291 km
Typical journey time: 9h 30m
Seen on fares with a connection: United Airlines, Frontier Airlines, Allegiant Air
Alternative airports: CGX, DPA, MDW, PWK, RFD

Route-level information; individual journeys vary.
We have not observed non-stop service on this route; the fares shown include at least one stop.

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Observed, not guaranteed

Every price is a fare we actually saw, and it may change at any time.

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The price is final on the provider's site, where your booking is completed.

How our prices work

Non-stop airlines seen on this route

Non-stop airlines seen on this route
Airline	Non-stop days / priced days	Fastest non-stop
United Airlines	24 / 84

Departure days with a non-stop fare checked in the last 14 days. A carrier listed here had a non-stop fare on at least 3 days; schedules may differ.

Airport to city: straight-line distance

Chicago Midway International Airport (MDW) → Chicago, city gazetteer reference point (41.8781, -87.6298): ≈ 14 km.
Chicago O'Hare International Airport (ORD) → Chicago, city gazetteer reference point (41.8781, -87.6298): ≈ 25 km.
Chicago Rockford International Airport (RFD) → Chicago, city gazetteer reference point (41.8781, -87.6298): ≈ 126 km.
Rapid City Regional Airport (RAP) → Rapid City, city gazetteer reference point (44.0805, -103.2310): ≈ 14 km.

Approximate distances calculated from coordinates, not road distances or travel times. These airports serve the city; they are not confirmed endpoints of an offer.

Lowest one-way fare we saw per airline

Cheapest airline from Chicago to Rapid City: Allegiant Air, from €134 (checked 16 Oct 2026).

Lowest one-way fare we saw per airline
Airline	Lowest fare	Priced days
Allegiant Air	€134Jan 10, 2027	23
Frontier Airlines	€147Dec 1, 2026	24
United Airlines	€217Feb 1, 2027	37

One-way fares checked in the last 14 days. An airline listed here had a fare on at least 3 departure days. Each figure is the lowest we saw, not a guaranteed fare. Connecting itineraries are included; the date is the departure day of that fare.

Frequently asked

How much is a flight from Chicago to Rapid City?

The lowest fare Routavio has observed is €134, found on 16 Oct 2026. Prices move, so read it as a floor rather than a quote.

When is the cheapest month to fly from Chicago to Rapid City?

In our observations January 2027 is the cheapest month so far, at €134.

Are there direct flights from Chicago to Rapid City?

Our data holds no non-stop flight from Chicago to Rapid City. The fares on this page include at least one stop.

Which airlines fly from Chicago to Rapid City?

Routavio has seen these carriers on the route: Allegiant Air, Frontier Airlines, United Airlines.

How long does the flight from Chicago to Rapid City take?

Across the 97 fares Routavio observed, the average journey time is 12h 32m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.

Which airlines had non-stop offers on at least 3 departure dates from Chicago to Rapid City?

For Chicago to Rapid City, examples of observed one-way non-stop offers checked within the last 14 days: United Airlines (24). Each number counts distinct departure dates, not weekly flights; check current availability in search.

Which airline has the lowest fare from Chicago to Rapid City?

Cheapest airline from Chicago to Rapid City: Allegiant Air, from €134 (checked 16 Oct 2026).

How observed prices work, what "No data" means and what a fare includes: Read the flight price guide