Route guide · 842 miles
Cheap Flights from Rapid City to Las Vegas
RAP → LAS · Nonstop 2h 13m · Live round-trip fares
The run from Rapid City (RAP) to Las Vegas (LAS) is 842 miles of sky, and ticket prices on it are anything but steady. One week can cost double the next. Booking about 3–6 weeks in advance — and watching fares with a free Airfare Deal alert — is how regulars on this route keep costs down.
Live fares for RAP → LAS are updating. Use the search below for real-time prices.
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Updated daily
Flight time
2h 13m
Nonstop, typical
Distance
842 mi
RAP → LAS
Book ahead
3–6 weeks
Best window, typically
Nonstop airlines
1
Allegiant Air
Nonstop flights from Rapid City to Las Vegas
Nonstop flights from Rapid City to Las Vegas are flown by Allegiant Air. The 842-mile trip takes about 2h 13m gate to gate, and nonstops are usually cheapest when booked 3–6 weeks ahead.
Booking insights: Rapid City → Las Vegas
- Distance: 842 miles · nonstop flight time: 2h 13m.
- Fares tend to bottom out when you book about 3–6 weeks ahead — earlier than that rarely helps, later usually hurts.
- Tuesday and Wednesday departures usually undercut Friday and Sunday fares on routes like this one.
- A free fare alert beats daily checking: we watch this route and ping you when prices drop.
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Flying from Rapid City to Las Vegas: what you need to know
The flight
The nonstop from RAP to LAS runs about 2h 13m over 842 miles. It's a comfortable mid-range flight: long enough that seat choice matters a little, short enough that paying up for extras rarely does.
Airlines on this route
Allegiant Air flies this route nonstop. That matters more than it sounds: the cheapest fare on one carrier is rarely the same product as the cheapest on another. Checked-bag fees, free seat selection and change rules all differ, so compare the full trip cost before you pick a winner. See our airline guides for exactly what each carrier charges — then send an enquiry and we'll confirm the all-in price for your dates.
Leaving from Rapid City (RAP)
Plan to be at the airport two hours before a domestic departure — ninety minutes can work at smaller airports outside peak times, but security lines are the one variable you can't control. If you're checking a bag, add time rather than cutting it close. Our Rapid City airport guide covers terminals, parking and ground transport so you can plan the trip to the airport, not just the flight.
Arriving in Las Vegas (LAS)
Before you land, know how you're getting from the airport to where you're staying — it's the part of the trip people forget to plan. The Las Vegas airport guide lays out your ground options, from transit and shuttles to rideshares and rental cars. Flying back the other way? Check Las Vegas to Rapid City fares — prices on the return direction often move on a different rhythm.
When to book
For a trip of 842 miles, booking 3–6 weeks ahead typically lands you in the sweet spot. Leave it to the final two weeks and prices usually climb as the cheapest seats sell out. If your dates are flexible, midweek departures are where the lower fares hide on most domestic routes.
Good to know before you go
- If you're traveling with only a carry-on, you can skip the bag-drop line entirely with mobile check-in.
- Download the airline's app before you fly; gate changes and delays show up there first.
- Nonstop time on this route is about 2h 13m — a one-stop itinerary needs to be a lot cheaper to be worth the extra hours.
- Tuesday and Wednesday departures are typically the cheapest days on domestic routes.
- Screenshot your fare before you enquire — prices move, and a saved fare helps our team match or beat it.
Rapid City to Las Vegas flight FAQs
How long is the flight from RAP to LAS?
Plan on about 2h 13m in the air for a nonstop from Rapid City to Las Vegas — the route runs roughly 842 miles. Connecting flights typically add 2–4 hours.
Are there nonstop flights from Rapid City to Las Vegas?
Allegiant Air typically operate nonstop flights from RAP to LAS. Nonstops are usually cheapest when booked 3–6 weeks ahead of departure.
What is the cheapest month to fly from Rapid City to Las Vegas?
Travelers usually find the gentlest prices away from peak periods — think post-holiday January and the early-fall weeks. Midweek dates inside those windows are cheaper still.
How much are last minute flights from RAP to LAS?
Book inside the final week and you'll usually pay a premium on RAP to LAS. Fares booked 3–6 weeks ahead are almost always kinder.
What is a good round-trip deal from Rapid City to Las Vegas?
A good deal is anything at or below the recent fares shown above. Set a free Airfare Deal alert and we'll ping you the moment fares drop.
Which airlines fly from Rapid City to Las Vegas?
You'll mainly see Allegiant Air on Rapid City to Las Vegas. Checking each against the live fares below is the surest way to find the lowest price for your dates.
How early should I get to Rapid City airport for this flight?
Plan on two hours before departure for a domestic flight — ninety minutes can work at smaller airports outside peak times. If you're checking a bag, earlier is better; the bag-drop line, not the flight, is what runs late.
Do the cheapest fares on this route include a checked bag?
Usually not. Basic economy fares on most airlines include a carry-on but charge extra for checked bags, and seat selection can cost more too. Add up the real total before comparing — a slightly higher regular fare sometimes works out cheaper. Our team confirms the full breakdown with you before you pay.
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