Harry Reid International to Chicago O'Hare
1511 miles great-circle distance, typically flown in 3h 26m with 8 airlines operating direct service from Harry Reid International (LAS) to Chicago O'Hare (ORD). Cheapest fares are usually in Jun (around $115 return), with peak prices in Jun (around $115). Departures on a Tuesday tend to undercut weekend prices on this corridor.
Flying from Harry Reid International
Harry Reid International sits a five-minute drive from the south end of the Las Vegas Strip — closer to its city centre than virtually any other major US airport. The terminals don't connect to rail; airport shuttles, taxis and rideshare handle the bulk of arriving traffic. Southwest is the largest carrier with its biggest non-base operation here, and Spirit, Frontier and Allegiant make Las Vegas one of the cheapest US fly-in destinations from anywhere in the country.
Arriving in Chicago
Chicago O'Hare sits 17 miles northwest of downtown Chicago, with the CTA Blue Line running 24 hours from the airport's own station to the Loop in 45 minutes for $5. Winter weather causes chronic delays from late November through February; book mid-day rather than evening departures during that window. Fares peak around major Chicago conventions and concert weekends; January and August are typically the cheapest months.
Who flies LAS to ORD?
| Airline | IATA | Flight time | Cabin |
| Southwest Airlines | WN | 3h 26m | Economy |
| Spirit Airlines | NK | 3h 26m | Economy |
| Frontier Airlines | F9 | 3h 26m | Economy |
| American Airlines | AA | 3h 26m | Economy |
| Delta Air Lines | DL | 3h 26m | Economy |
| United Airlines | UA | 3h 26m | Economy |
| JetBlue Airways | B6 | 3h 26m | Economy |
| Allegiant Air | G4 | 3h 26m | Economy |
8 carriers fly direct on this corridor. Frequencies vary by season — summer and winter holiday peaks see additional flights.
Best time to fly LAS→ORD
Synthesised from 12-month price aggregates. Cheapest months in green, peak in red.
Estimated baseline. Prices update on a 30-day cadence as Travelpayouts data refreshes. Cheapest day-of-week typically Tuesday.
Las Vegas to Chicago FAQs
Direct flights from Harry Reid International (LAS) to Chicago O'Hare (ORD) take approximately 3h 26m for the 1511-mile journey, plus 30–60 minutes of taxi, climb and descent. Total airport-to-airport time depends on cruise winds and air-traffic queueing on approach.
Jun is typically the cheapest month on this route, with one-way fares from $90. Jun is the peak — expect prices 2–3× higher. Book 4–8 weeks ahead for best fares; last-minute prices on this corridor rise sharply inside two weeks of departure.
8 carriers operate direct service from Harry Reid International (LAS) to Chicago O'Hare (ORD): Southwest Airlines, Spirit Airlines, Frontier Airlines, American Airlines, Delta Air Lines and 3 more. Frequencies vary by season and carrier — Southwest Airlines typically operates the highest weekly count on this corridor.
No — United States is domestic travel for US citizens. A US passport is not required for the 50 states, DC or US territories (Puerto Rico, US Virgin Islands, Guam, American Samoa, Northern Mariana Islands), though Real ID-compliant ID is required at TSA from May 2025.
Chicago O'Hare (ORD) is the primary international airport for Chicago. Allow 30–60 minutes for the ground transfer by train, express bus, taxi or rideshare depending on traffic and time of day. See the airport's official website for current train and shuttle timetables.