Flights from Los Angeles to Chicago

Cheap Flights from Los Angeles to Chicago

Chicago's two airports serve different airline ecosystems and are located on opposite sides of the city — a detail that matters far more than most booking platforms make clear. O'Hare International Airport (ORD) is 18 miles northwest of downtown Chicago, connected by the CTA Blue Line subway for $5 and 45 minutes. Midway Airport (MDW) is 10 miles southwest, connected by the CTA Orange Line for $5 and 30 minutes. Southwest Airlines flies exclusively into Midway — any Southwest result for "Chicago" is MDW, not ORD. United, American, Delta, and Alaska all use O'Hare. If you're traveling to the south or west side of Chicago, Midway can save 30–45 minutes in ground transport over O'Hare. For the Loop, River North, and most downtown locations, both are comparably convenient by rail.

Nonstop flight time from LAX to ORD runs approximately 4 hours. LAX to MDW is comparable at 3 hours 55 minutes. The eastbound jet stream provides no material benefit on this route (winds are unfavorable going east from LA to Chicago's latitude), but the westbound return from Chicago to LA benefits significantly — averaging 3 hours 30–40 minutes versus 4 hours going the other direction.

The LAX–Chicago corridor is one of the highest-frequency routes in US domestic aviation. United operates it as a key hub connector between its Los Angeles and Chicago operations. American runs multiple daily nonstops from LAX Terminal 4 to ORD Terminal 3. Alaska, Delta, and Frontier add further competition. The combined departure frequency — typically 20+ daily nonstops — creates one of the most liquid fare markets on any US domestic route, which means good competition for travelers booking 3–6 weeks out.

Airlines Flying Los Angeles to Chicago

Flight Duration and Schedule

• LAX to ORD nonstop: Approximately 4 hours eastbound. Return westbound averages 3 hours 35 minutes.
• LAX to MDW nonstop: Approximately 3 hours 55 minutes eastbound.
• Daily departure frequency: United (6–8 from LAX to ORD), American (4–5), Southwest (4–6 to MDW), Alaska (2–3). Over 20 total daily nonstops between both Chicago airports.
• First departures: 6:00–7:00 AM from LAX, arriving Chicago by noon–1 PM Central. Ideal for same-day business or a full first day of sightseeing.
• Red-eye option: United and American operate overnight departures from ORD arriving LAX early morning — useful for business travelers who want to work a full Chicago day and wake up in LA.
• Busiest flights: Monday morning and Friday afternoon departures from both directions carry the highest business traveler concentration and the highest fares.

Monthly Fare Guide: Los Angeles to Chicago Round-Trip

How to Find the Cheapest LAX to Chicago Flights

• Compare ORD and MDW separately: Southwest's Midway fares include two free bags and frequently undercut ORD fares by $20–$60 after bag fees are added. Always open Southwest.com separately from your aggregator search.
• Avoid Monday mornings and Friday afternoons: This is a major business travel corridor. Business-window departures price 40–60% higher than Tuesday–Thursday equivalents. For leisure travelers, midweek flights save $50–$100 per person each way.
• January and February are dramatically cheaper: Chicago's brutal winter reputation keeps leisure demand low in the first two months of the year. Fares often drop to $110–$150 roundtrip — the best the LAX–Chicago corridor offers all year.
• United's basic economy on a 4-hour flight is a real trade-off: United's basic economy restricts overhead bin carry-on access — only a personal item under the seat. On a 4-hour flight, most travelers find upgrading to standard economy ($25–$40 more) worthwhile.
• Alaska Airlines is frequently underpriced on this route: Alaska consistently ranks among the cheapest non-budget options on LAX–ORD, often beating United and American by $20–$40 on the same travel dates. Check Alaska's website directly alongside aggregator results.
• Book 4–6 weeks out for optimal pricing: The sweet spot on this business corridor is 28–42 days before departure. Pricing rises steeply inside 2 weeks as business travelers book last-minute at premium fares.
• Avoid Lollapalooza weekend (late July/early August): The annual music festival in Grant Park draws 400,000+ visitors and spikes Chicago hotel rates 80–120% above baseline. Flights don't spike as dramatically, but accommodation costs make late July and early August the most expensive period to visit Chicago.

Chicago Airport Guide: ORD and MDW

O'Hare International Airport (ORD):

• Five terminals (1, 2, 3, 5) connected by the Airport Transit System — a free automated people mover running between all terminals. Terminal 4 is under construction and not currently used for passengers.
• United: Terminal 1 (all United domestic and international flights). United Club lounges at B6 and B18.
• American: Terminal 3. Admirals Club at H6.
• Delta, Alaska, Frontier: Terminal 2 (international at Terminal 5).
• CTA Blue Line to downtown Chicago: $5 one-way, 45 minutes to the Loop. Trains run 24 hours. Most reliable transport option for downtown Chicago destinations.
• Rideshare from ORD to downtown: $35–$60 depending on traffic. I-90/94 can be severely congested during rush hour (7–9 AM and 4–7 PM).

Midway Airport (MDW):

• Single terminal with Concourses A, B, and C. Compact, easier to navigate than ORD.
• Southwest Airlines: All gates.
• CTA Orange Line to downtown Chicago (The Loop): $5 one-way, 30 minutes. Runs 4:30 AM to 1 AM daily.
• Rideshare from MDW to downtown: $20–$40. Closer to the south and west sides of the city.

Getting from Chicago Airports to City Center

Top Things to Do in Chicago

• Architecture Boat Tours (Chicago Architecture Center): Departing from the Chicago Riverwalk and Michigan Avenue Bridge. $47–$55 per person, 90 minutes. Covers 50+ architecturally significant buildings along the Chicago River. The most educational 90 minutes available in any American city, and the river-level perspective of buildings like the Marina City corn cobs, the Tribune Tower, and the Wrigley Building is completely different from street level.
• Art Institute of Chicago: 111 S Michigan Ave. $25 adults, free for Illinois residents and anyone under 14. One of the most significant art collections in the world — Seurat's A Sunday on La Grande Jatte, Grant Wood's American Gothic, and Picasso's The Old Guitarist are all here. The Modern Wing (2009) is particularly strong for 20th-century work.
• Millennium Park and The Bean: Free outdoor public space at Michigan Avenue and Randolph. Cloud Gate (The Bean) is the most photographed sculpture in the US — arrive before 8 AM for photos without crowds. Crown Fountain (the video faces) and the Lurie Garden are both free and worth the walk.
• Wrigley Field: 1060 W Addison St. Chicago Cubs home since 1914. Upper deck bleacher seats run $20–$45 for most games. The ivy-covered outfield wall and the hand-operated scoreboard are the two most distinctive features of any stadium in Major League Baseball.
• Chicago Riverwalk: Free, running 1.25 miles along the south bank of the Chicago River from Lake Shore Drive to Lake Street. Outdoor bars, kayak rentals ($22/hour), and waterfront restaurants operate May through October. The view from the DuSable Bridge at Michigan Avenue — river flowing west with the skyline framing both banks — is the definitive Chicago postcard image.
• Pilsen Neighborhood: 18th Street from Halsted to Ashland. The National Museum of Mexican Art (1852 W 19th Street) is free and holds the largest Latino art collection in the US. The neighborhood murals along 18th Street are maintained by local artists and change seasonally — a genuinely different experience from the tourist-focused murals in the tourist quarter.
• Pequod's Pizza (Lincoln Park): 2207 N Clybourn Ave. The caramelized crust deep dish is Chicago's most distinctive local food product — burnt cheese on the outer edge of the crust from the cast iron pan technique. Locals who work near Wrigley consistently prefer Pequod's over the tourist-marketed alternatives. Expect a 30–45 minute wait on weekend evenings without a reservation.

Chicago Travel Tips

• The CTA Ventra card (tap-to-pay or app) is the easiest way to use Chicago transit. The unlimited day pass costs $10 and covers unlimited rides on rail and bus for 24 hours from first use.
• Chicago's weather in January and February is genuinely extreme — wind chill below -20°F is not uncommon. All major attractions remain open, but outdoor time is significantly limited. Pack for it or plan your visit between May and October.
• Chicago-style pizza (deep dish) takes 45–60 minutes to prepare at most restaurants — order it as your first course, not after you arrive hungry and expecting fast service.
• Tipping in Chicago runs 18–20% at restaurants. Most venues now default to 20% on digital payment systems.
• Chicago is in the Central Time Zone — 2 hours ahead of Los Angeles. A 6 PM LAX departure lands at 11 PM Chicago time. A 6 AM MDW departure lands at 8 AM LA time — useful to know for scheduling.