The Chicago to Las Vegas corridor is one of the most competitive in the domestic U.S., offering a robust selection of nonstops from both O'Hare (ORD) and Midway (MDW) on legacy, low-cost, and ultra low-cost carriers. Expect flight times around 3 hours 50 minutes southbound, often extending to 4 hours 10 minutes on the return leg due to prevailing winds. This intense competition frequently translates into exceptional fare opportunities, particularly outside of major convention dates or spring break periods.
Route Insight: Travelers from Chicago benefit from a robust selection of nonstop carriers, including budget options like Spirit and Frontier, making Las Vegas an accessible and frequent escape. The 3-hour time difference allows for seamless weekend getaways, maximizing your time on The Strip without significant adjustment.
Route Overview: Chicago to Las Vegas
| Route | Chicago (ORD / MDW) → Las Vegas (LAS) |
|---|---|
| Distance | ~1,520 miles |
| Flight Time (Outbound) | ~3h 50min |
| Flight Time (Return) | ~4h 10min |
| Nonstop Carriers | United Airlines, American Airlines, Southwest Airlines, Spirit Airlines, Frontier Airlines |
| Connecting Carriers | Delta (via ATL/SLC), JetBlue (via BOS) |
| Peak Season | March–May (pool season, March Madness, conventions) |
| Shoulder Season | September–November, January–February |
Fare Comparison: Chicago to Las Vegas
| Cabin | Airline | From | Stops | Note |
|---|---|---|---|---|
| Economy | United Airlines | $79 | Nonstop | Lowest published round-trip |
| Economy | American Airlines | $99 | Nonstop | Competitive nonstop fare |
| Economy | Delta | $78 | 1 stop | Often cheapest with connection |
| Business | Multiple (via Camli) | $700 | Nonstop | Consolidator fare — premium cabin |
| Business | United Airlines | $1400 | Nonstop | Published business class fare |
Prices shown are indicative round-trip starting fares as of May 2026, inclusive of taxes and fees. Actual fares vary by date, availability, and booking class. Consolidator fares are available exclusively through Camli and may not appear on public booking sites.
Airlines Flying Chicago to Las Vegas
- United Airlines (UA) — nonstop, Daily or near-daily service. MileagePlus earning. Economy Plus available for extra legroom.
- American Airlines (AA) — nonstop, Daily or near-daily service. AAdvantage hub advantage. Admirals Club access with business class.
- Southwest Airlines (WN) — nonstop, Daily or near-daily service. No change or cancel fees. Wanna Get Away fares are the lowest. Checked bags: $45 first, $55 second.
- Spirit Airlines (NK) — nonstop, Daily or near-daily service. Ultra-low base fares. Big Front Seat for extra space. Bags and seat selection are add-ons.
- Frontier Airlines (F9) — nonstop, Daily or near-daily service. Ultra-low base fares. Stretch seating available. Discount Den membership for lowest prices.
- Delta (XX) — connecting, Via via ATL/SLC. Connecting service through via ATL/SLC. Can offer competitive fares.
- JetBlue (B6) — connecting, Via via BOS. Connecting service through via BOS. Can offer competitive fares.
The Chicago-Las Vegas route remains a battleground for airlines, with legacy carriers, low-cost options, and ultra low-cost players all vying for market share. This fierce competition consistently benefits travelers, ensuring a steady supply of seats and frequent fare sales, but also necessitates careful price comparison across all options.
Best Time to Fly Chicago to Las Vegas
Cheapest months: January, February, and late August are consistently the cheapest months for Chicago-Las Vegas flights. January and February avoid the peak convention season and spring break crowds, while late August benefits from the extreme desert heat deterring some travelers, pushing hotel and airfare prices down. Avoid March through May if budget is a primary concern, as this period sees a confluence of college basketball, pool season openings, and major industry conferences.
Best days: Tuesday, Wednesday, and Saturday are typically the cheapest days to fly from Chicago to Las Vegas. Sunday travel, especially the return, is almost always the most expensive, followed closely by Friday departures. Shifting your departure or return by a single day can often yield significant savings, sometimes hundreds of dollars on a round-trip fare.
Booking window: For economy class, target a booking window of 6-8 weeks out. For peak season travel (March-May, holiday weekends), extend that to 3-4 months. Business and first class fares, while less volatile on this route due to the strong leisure component, tend to offer best value 2-3 months in advance. Booking within two weeks of departure almost guarantees higher prices across all cabins.
Monthly Price Calendar
- Jan (medium): Post-holiday deals from Chicago; escape the Midwest cold.
- Feb (medium): Valentine's demand from Chicago; book early for best prices.
- Mar (high): Peak pool season begins; expect higher fares from Chicago.
- Apr (medium): Spring break for Chicago schools; flights fill fast.
- May (high): Memorial Day weekend surge; high demand from Chicago.
- Jun (low): Summer travel starts; consider early morning flights from CHI.
- Jul (medium): Independence Day travel; expect premium pricing from Chicago.
- Aug (low): Back-to-school deals post-summer; good value from Chicago.
- Sep (medium): Labor Day weekend busy; otherwise, good shoulder season from CHI.
- Oct (medium): Mild weather, popular for conventions; book ahead from Chicago.
- Nov (medium): Thanksgiving week is expensive; otherwise, good value from Chicago.
- Dec (medium): Holiday travel peaks; New Year's Eve flights from Chicago are pricey.
Travel Tips
- MDW vs. ORD: Don't Overlook Midway: While O'Hare (ORD) offers more daily nonstops, particularly on United and American, Midway (MDW) often presents compelling alternatives, especially on Southwest. If you live closer to MDW or prefer a smaller, less chaotic airport experience, compare fares carefully. Southwest's unique pricing model can sometimes undercut legacy carriers from ORD, even for last-minute bookings.
- Factor in Baggage Fees: Spirit and Frontier are mainstays on this route, but their low base fares can be deceptive. Always factor in baggage fees, seat selection, and carry-on charges when comparing against Southwest ($45/$55 checked bags but no change fees) or even basic economy on United/American. A seemingly cheaper ultra low-cost fare can quickly become more expensive if you're not traveling ultra-light.
- Red-Eyes: A Strategic Option: Consider the late-night red-eye flights from LAS back to CHI. While not for everyone, these departures (often leaving after 10 PM PT) can be significantly cheaper, especially on Sunday or Monday nights. They also allow for an extra full day in Vegas and often land early enough in Chicago to minimize disruption to the following workday, assuming you can sleep on a plane.
- Beware of Convention Spikes: Las Vegas hosts numerous massive conventions year-round, which can dramatically inflate airfare and hotel prices. Before booking, quickly cross-reference your travel dates with a Las Vegas convention calendar. If a major event like CES or NAB is in town, expect to pay a premium, or consider shifting your dates.
- Loyalty Programs Matter Here: Given the frequency of flights on this route, choosing an airline and sticking with their loyalty program can pay dividends. United and American offer strong networks out of ORD, while Southwest's Rapid Rewards is highly valuable from MDW. Accumulating status or points on one carrier can lead to upgrades, complimentary bag waivers, or discounted fares on future trips to Vegas.
About Las Vegas
Escape Chicago's Chill
Trade Chicago's harsh winters for Las Vegas sunshine. Direct flights on United, American, Southwest, Spirit, and Frontier make it an easy 3h 50min escape.
Weekend Getaway Ready
With a quick 3-hour flight time difference from Chicago, Las Vegas is perfect for a spontaneous weekend trip without significant jet lag.
Conventions & Entertainment Hub
Chicago business travelers find Las Vegas a prime destination for major conventions and world-class entertainment, easily accessible via nonstop flights.
Desert Adventures Beyond The Strip
Beyond the casinos, explore Red Rock Canyon or Hoover Dam, a stark contrast to Chicago's urban landscape, just a short drive from the city.
Visa & Entry Information
Requirement: Domestic flight — no passport required
Domestic US flight. Any valid government-issued photo ID is accepted by TSA.
- Currency: US Dollar (USD)
- Timezone: Pacific Time (PT / UTC-8)
- Language: English
Frequently Asked Questions
- Which airlines offer nonstop flights from Chicago to Las Vegas?
- You'll find a robust selection of nonstop carriers. From O'Hare (ORD), United Airlines and American Airlines dominate, supplemented by Spirit Airlines and Frontier Airlines. From Midway (MDW), Southwest Airlines offers frequent service. This competitive landscape is generally good news for consumers, driving down prices.
- What's the typical flight duration for this route?
- Direct flights from Chicago to Las Vegas generally take around 3 hours and 50 minutes on the outbound journey. The return trip to Chicago, however, often clocks in slightly longer, closer to 4 hours and 10 minutes, primarily due to prevailing westerly winds over the continental U.S.
- Is it better to fly into O'Hare (ORD) or Midway (MDW) when returning to Chicago?
- The 'better' airport depends entirely on your final destination in Chicago or its suburbs. O'Hare (ORD) offers more extensive public transit via the Blue Line and commuter rail connections, while Midway (MDW) is closer to downtown and easily accessible via the Orange Line. Always check both for pricing and convenience to your home.
- Are there good connecting flight options if nonstops are too expensive?
- Absolutely. While nonstops are plentiful, if prices spike, consider connecting options. Delta frequently offers competitive fares via their hubs in Atlanta (ATL) or Salt Lake City (SLC). JetBlue also provides a viable, albeit less direct, option through Boston (BOS). These can sometimes be significantly cheaper, especially during peak travel periods, but add considerable travel time.
- When is the absolute cheapest time to visit Las Vegas from Chicago?
- Target late January, early February, or late August. These periods generally avoid major conventions, spring break, and the pre-holiday rush. The intense summer heat in August also deters some tourists, leading to lower demand for both flights and hotels, making it a value sweet spot despite the high temperatures.
- Should I choose basic economy on this route?
- Basic Economy can offer the lowest published fares, but be acutely aware of its restrictions. On United and American, it often means no seat selection, last boarding group, and strict carry-on rules (sometimes only a personal item). For a short leisure trip where you're packing light and don't mind the seat assignment lottery, it can be a good value. Otherwise, the small upgrade to standard economy is often worth it.