Downtown Denver skyline from City Park with the Rocky Mountains behind. Flights from Chicago to Denver

Route guide

Cheap Flights from Chicago to Denver

Search Chicago O'Hare to Denver International, with which DEN concourse each airline uses, Terminal 1 and 3 security hours and rail into downtown Denver.

ORD to DEN · 886 mi · 2h 31m est.

ORD to DEN
886 miles
2h 31m nonstop (estimated)
4 airlines in our fare results

Photo: David Herrera, CC BY 2.0, via Wikimedia Commons

Chicago to Denver flight insights

Average flight time

~2h 31m (estimated)

ORD → DEN

Cheapest cached price

$151

Checking live fares…

Prices shown may not be current. Last checked: Oct 27, 2026.

Planning a trip from Chicago to Denver? The average flight time on this route is ~2h 31m (estimated). The lowest fare we recorded on this route recently was $151 (last checked Oct 27, 2026); today's live fare for your dates can differ.

Chicago to Denver at a glance

ORD to DEN is about 886 miles in a straight line. The curved line is an illustration; the route your airline flies may differ.

Route Quick Facts

Quick facts for flights from Chicago to Denver on Eazair
Origin	Chicago (ORD)
Destination	Denver (DEN)
Average Flight Time	~2h 31m (estimated)
Current Lowest Fare	$151
Fares Last Checked	Oct 27, 2026
Distance	886 miles (ORD to DEN)
Time in Denver	1 hour behind Chicago
Airlines in our fare results	4

Local time in Denver is 1 hour behind Chicago. Chicago is on Central Time, Denver on Mountain Time.

Flight deals from Chicago to Denver

Searching from Chicago O'Hare International (ORD), not Midway (MDW), this page covers flights to Denver International (DEN). On O'Hare's nonstop list as of 1 Sep 2026, American, Frontier and United serve Denver. Schedules change, so check the stops shown with each result. Delta, United and American have appeared in EazAir's fare checks for this route. DEN's airline page puts Delta at Concourse A, United at Concourses A and B, and American at Concourse C, though it shows no update date.

O'Hare lists checkpoint hours terminal by terminal. In Terminal 1, CP1 runs 3:30 a.m. to 11 p.m. and CP2, which has TSA PreCheck, 4 a.m. to 8:30 p.m. In Terminal 3, CP7A is listed from 3:30 a.m. to 10:30 p.m. O'Hare warns that day-to-day airport activity can shift these hours, so check with your airline. Arriving by CTA Blue Line, follow the Basement Level tunnels from O'Hare station to Terminals 1, 2 and 3.

Every DEN gate sits beyond security on Concourses A, B or C, served by the train to the gates from the Level 4 platform. DEN says the ride to the C Gates takes less than 10 minutes. For downtown, the RTD A Line leaves the Transit Center on Level 1 every 15 minutes, and DEN lists 37 minutes to Union Station, with an RTD Airport Fare. Rideshare pickup is at Level 5, Island 5, and taxis wait at Level 5, Island 1.

EazAir's first 19 fare checks for ORD to DEN, run from 2 Sep to 13 Oct 2026, each requested the lowest one-way economy fare for one adult with travel 30 days later. They came back with 11 different results, the highest at least double the lowest and the lowest on 17 Sep. Of the airlines seen, United Basic Economy is the one that leaves out a carry-on on domestic flights for most travellers. Search your own dates, and check the final price, bags and fare rules on the partner site before you pay.

Airports for Chicago to Denver flights

Departure · Chicago

O'Hare International (ORD)

Central Time

Other airports near Chicago: Chicago Midway International (MDW)

Arrival · Denver

Denver International (DEN)

Mountain Time

About Denver

Areas to know in Denver

LoDo (Lower Downtown)
RiNo Art District
Capitol Hill

Weather in Denver

A semi-arid climate with over 300 sunny days a year; the high altitude keeps evenings cool even in summer, and winter brings snow to the nearby mountains.

Chicago to Denver: airport and fare guide

Checked on 17 Oct 2026 against the airport, airline and transit pages listed under Sources. Airports and airlines change these details, so confirm them with your airline before you fly.

Chicago O'Hare International's nonstop list (as of 1 Sep 2026) shows Denver (DEN) served by American Airlines, Frontier Airlines and United Airlines. Schedules change, so check the stops shown with each result.

Chicago Midway (MDW) is a separate airport, served by the CTA Orange Line. Check which Chicago airport each fare uses.

Leaving from Chicago O'Hare International (ORD)

The CTA Blue Line runs 24 hours to O'Hare station, which links to Terminals 1, 2 and 3 by Basement Level tunnels. For Terminal 5, ride the free Airport Transit System from Terminal 2.
Pace Routes 250 and 330 and Metra North Central Service weekday trains stop at the Multi-Modal Facility, which the Airport Transit System links to every terminal.
O'Hare lists the Terminal 5 checkpoint (CP10) as open 24 hours, with TSA PreCheck from 3:45 a.m. to 8:30 p.m. Terminal 2's checkpoint (CP5) is listed from 3:15 a.m. to 11 p.m., with PreCheck from 3:30 a.m. to 8 p.m.
In Terminal 1, CP1 is listed from 3:30 a.m. to 11 p.m. and CP2, with TSA PreCheck, from 4 a.m. to 8:30 p.m. In Terminal 3, CP7A is listed from 3:30 a.m. to 10:30 p.m., with PreCheck from 3:30 a.m. to 8:30 p.m.
O'Hare says checkpoint hours may be affected by day-to-day airport activities, and recommends checking with your airline about operations on the date of your flight.

Arriving at Denver International (DEN)

Airline	DEN concourse
Delta	Concourse A
United	Concourses A and B
American	Concourse C
Other airlines	Check your boarding pass or airline app.

DEN's airline page shows no update date, so confirm your concourse on your boarding pass.

DEN has three concourses, A, B and C, beyond security. The train to the gates links them with Jeppesen Terminal.
The train leaves from a platform on Level 4. DEN says the ride from the terminal to the C Gates takes less than 10 minutes.
With an A gate boarding pass you can walk the A-Bridge, directly north of the security checkpoints, instead of taking the train.
In Jeppesen Terminal, even-numbered doors are on the west side and odd-numbered doors are on the east side.

Getting from DEN	Where to board	Where it goes
RTD A Line	Transit Center on Level 1, beneath the Westin Denver International Hotel. DEN says trains run every 15 minutes. RTD says trips to or from the airport need an Airport Fare.	Union Station in downtown Denver, 37 minutes according to DEN, with stops at 61st & Peña, 40th & Airport and 38th & Blake.
Rideshare	Level 5, Island 5, on the East or West side of the terminal. DEN says to order your ride after collecting your luggage.	Wherever you booked.
Taxis	Level 5, Island 1. DEN says taxis are available 24 hours a day and you can go straight to the stands after baggage claim.	Your destination.
Mountain carriers	Level 5, Island 4.	The carrier's own routes.
Hotel and rental car shuttles	Hotel shuttles pick up on Level 5. A free rental car shuttle runs from the Jeppesen Terminal pickup area.	Hotels and the off-site rental car counters.

What the lowest fares include

Fare	Carry-on	Checked bag	Seat	Changes
Delta Main Basic	Delta says every passenger can bring one carry-on and one personal item free.	Delta charges for checked bags on domestic flights unless you qualify for a waiver, such as Medallion status or an eligible Delta SkyMiles American Express card.	Assigned after check-in. You may be able to buy a seat ahead of time for a fee.	Refunds are not allowed after the 24-hour risk-free cancellation window. Delta says a change or cancellation may be possible for a fee, with any value left as an eCredit.
American Basic Economy	Included, plus a personal item.	Not included, except for some AAdvantage status members and eligible cardmembers.	A free seat is assigned at check-in, or you can pay to choose one.	Generally not allowed. American describes a 24-hour window and some credit options on its Basic Economy page.
United Basic Economy	Not included on domestic flights. One personal item only, unless you are a MileagePlus Premier member, travel with one, or hold a qualifying MileagePlus card.	Not included; check United's bag fee calculator.	Assigned by United before boarding.	Changes may not be allowed. Refund if cancelled within 24 hours of booking, under United's 24-hour policy; after that, partial travel credit.

Based on the airlines' own pages, checked on 17 Oct 2026. Fees are left out because they change often. Check the final price, bags and fare rules on the partner site before you pay.

How EazAir measured fares on this route

EazAir's first 19 fare checks from Chicago to Denver ran from 2 Sep to 13 Oct 2026. For the return direction, Denver to Chicago, EazAir's first 16 checks ran from 10 Sep to 17 Oct 2026. Each check asked partner travel sites for the lowest one-way economy fare for one adult, departing 30 days after the check. Results can include connecting flights. The highest result was at least double the lowest. The 19 checks returned 11 different results. The lowest result came on 17 Sep. That is a small sample, so it shows that prices move, not when they are lowest. Search your own dates for current prices.

Sources

Delta: Delta's new O'Hare home (11 Oct 2022, accessed 17 Oct 2026)
O'Hare: Public transit (no date shown, accessed 17 Oct 2026)
CTA: Airports (no date shown, accessed 17 Oct 2026)
O'Hare: ATS service update (no date shown, accessed 17 Oct 2026)
O'Hare: TSA checkpoints (no date shown, accessed 17 Oct 2026)
O'Hare: Domestic nonstop destinations (as of 1 Sep 2026, accessed 17 Oct 2026)
DEN: Airlines (no date shown, accessed 17 Oct 2026)
DEN: Facilities (no date shown, accessed 17 Oct 2026)
DEN: To and from the airport (no date shown, accessed 17 Oct 2026)
DEN: East security checkpoint opens (4 Aug 2025, accessed 17 Oct 2026)
RTD: Airport (no date shown, accessed 17 Oct 2026)
Delta: Delta Main Basic (no date shown, accessed 17 Oct 2026)
Delta: Fares and discounts (no date shown, accessed 17 Oct 2026)
Delta: Carry-on baggage (no date shown, accessed 17 Oct 2026)
Delta: Bags (no date shown, accessed 17 Oct 2026)
American Airlines: Basic Economy (no date shown, accessed 17 Oct 2026)
United: Basic Economy FAQ (no date shown, accessed 17 Oct 2026)
EazAir fare checks for ORD to DEN, 2 Sep 2026 to 13 Oct 2026; DEN to ORD, 10 Sep 2026 to 17 Oct 2026

Frequently asked questions

Which airlines fly nonstop from O'Hare to Denver?

O'Hare's nonstop list, as of 1 Sep 2026, shows Denver served by American Airlines, Frontier Airlines and United Airlines. Schedules change, so check the stops shown with each result.

Which concourse will I land at in Denver?

DEN's airline page lists Delta at Concourse A, United at Concourses A and B, and American at Concourse C. The page shows no update date, so confirm your concourse on your boarding pass.

How do I get from DEN to downtown Denver?

Take the RTD A Line from the Transit Center on Level 1, beneath the Westin Denver International Hotel. DEN says trains run every 15 minutes and reach Union Station in 37 minutes. RTD says an Airport Fare applies.

What are the security hours in O'Hare Terminals 1 and 3?

O'Hare lists Terminal 1 CP1 from 3:30 a.m. to 11 p.m. and CP2, with TSA PreCheck, from 4 a.m. to 8:30 p.m. Terminal 3 CP7A is listed from 3:30 a.m. to 10:30 p.m.

Can I bring a carry-on on basic fares from Chicago to Denver?

Delta Main Basic and American Basic Economy include a carry-on and a personal item. United Basic Economy on domestic flights includes only a personal item, unless you hold MileagePlus Premier status, travel with a member, or have a qualifying card.

How far is Chicago O'Hare from Denver International?

ORD and DEN are about 886 miles apart in a straight line. Flight times vary by airline, direction and routing, so check the scheduled time shown with each result.

Airline bag fees

Baggage allowances differ significantly between fare classes (Basic/Light vs. Standard/Flex) and can change over time. Always verify the exact allowance for your specific fare with the airline before you fly.

Checked bag fees from each airline's own website
Airline	Carry-on, basic economy	1st checked bag	2nd checked bag	Source
American Airlines	Included	$45	$55	aa.com, Sep 24, 2026
United Airlines	Not included	$40	$50	united.com, Sep 24, 2026
Delta Air Lines	Included	$45	$55	delta.com, Sep 24, 2026
Southwest Airlines	Included	$45	$55	southwest.com, Oct 27, 2026
JetBlue	Included	$45	$59	jetblue.com, Sep 24, 2026
Alaska Airlines	Included	$45	$55	alaskaair.com, Sep 24, 2026
Frontier Airlines	Not included	Varies	Varies	flyfrontier.com, Sep 24, 2026
Sun Country Airlines	Not included	Varies	Varies	suncountry.com, Sep 24, 2026

Domestic US fees per bag, each way, when paid online in advance. "Varies" means the airline prices bags by route and date.

Travel tips

Arrive early for domestic flights

TSA generally recommends arriving at least 2 hours before a domestic departure, more at larger hub airports during peak travel periods.

Pack a mixed carry-on

Keep a change of clothes, chargers, and any essentials in your carry-on rather than only your checked bag, in case of a delay or a bag that doesn't arrive with you.

Screenshot your confirmation

Save a screenshot or PDF of your booking confirmation and boarding pass before you travel, in case you lose signal or battery at the airport.

Check in online when it opens

Most airlines open online check-in 24 hours before departure. Checking in early can help with seat selection and, on some airlines, boarding group assignment.