Denver to Chicago: Cheapest Flight Options, 2023 Guide
Flying from Denver to Chicago remains one of the most frequently traveled routes in the United States, connecting Colorado’s Mile High City with the Windy City’s bustling business and cultural hub. Whether you’re planning a quick business trip, a weekend getaway to explore Chicago’s iconic landmarks, or visiting friends and family, finding affordable flights from Denver to Chicago requires strategy, timing, and knowledge of the aviation landscape. This comprehensive guide explores the cheapest flight options available, insider tips for booking, and practical advice to maximize your savings on this 1,000-mile journey.
The Denver to Chicago corridor serves millions of passengers annually, with multiple airlines competing for your business. This competition, combined with strategic booking practices and flexibility with your travel dates, can result in significant savings. The typical flight duration between Denver International Airport (DEN) and Chicago’s major airports ranges from 2 hours 45 minutes to 3 hours 15 minutes for direct flights, making this a relatively short regional journey. Understanding the nuances of this route—from seasonal pricing patterns to airline partnerships—empowers you to secure the best possible fares.
Airlines Operating Denver to Chicago
Several major carriers operate the Denver to Chicago route, each offering different price points, amenities, and frequent flyer benefits. United Airlines maintains a strong presence on this corridor with multiple daily flights, particularly from Denver International to Chicago’s O’Hare International Airport (ORD). United frequently offers competitive pricing, especially for advance bookings, and their MileagePlus frequent flyer program provides valuable perks for regular travelers on this route.
Southwest Airlines serves the Denver to Chicago market with flights to both O’Hare and Chicago Midway International Airport (MDW). Southwest’s point-to-point network and focus on short-haul routes means they often price competitively on this segment. Their two free checked bags policy makes them particularly valuable for travelers with luggage, effectively lowering your total travel cost compared to airlines charging baggage fees.
Delta Air Lines operates daily service on this route, often with competitive fares during off-peak periods. American Airlines also provides options, though with fewer daily frequencies than United. For those seeking budget alternatives, understanding the SkyVoyage Hub blog resources helps compare all available carriers systematically.
Budget Airlines and Discount Carriers
Frontier Airlines, a Denver-based low-cost carrier, offers significantly discounted fares on the Denver to Chicago route. As a Colorado-based airline, Frontier maintains a substantial presence at Denver International Airport, making this route particularly competitive. However, be aware that Frontier’s ultra-low-cost model includes baggage fees, seat selection fees, and other ancillary charges that can add up quickly. Calculate your total cost including these extras before assuming you’re getting the best deal.
Spirit Airlines occasionally serves this market with exceptionally low base fares, though similar to Frontier, ancillary fees can substantially increase your final cost. Allegiant Air may offer seasonal service, particularly during peak travel periods. When evaluating budget carriers, always factor in your specific needs: if you’re traveling with checked luggage, the savings from a lower base fare might disappear once you add baggage fees.
Ultra-low-cost carriers work best for travelers flying with just a personal item or small carry-on, those flexible with flight times, and passengers not requiring seat selection or other extras. For families or those with multiple bags, traditional carriers like Southwest—with their included baggage—might offer better overall value despite higher base fares.
Best Times to Book Your Flights
Timing your booking strategically can result in substantial savings on Denver to Chicago flights. The best times to book airline tickets generally involves booking 2-3 months in advance for domestic flights, though the Denver to Chicago route sometimes shows better prices with 4-6 weeks advance purchase. Tuesday and Wednesday bookings frequently offer better prices than weekend bookings, as airlines adjust pricing based on booking patterns and competitor activity.
Avoid booking on Sunday evenings when airlines typically raise prices in response to weekend leisure travel demand. Early morning bookings (between 3 AM and 6 AM) sometimes reveal lower fares before prices adjust throughout the business day. However, with modern dynamic pricing algorithms, the savings from booking at specific times have diminished compared to simply booking well in advance.
The absolute best strategy involves setting up price alerts on multiple platforms—Google Flights, Kayak, and Skyscanner—and booking immediately when prices drop to your target threshold. This approach beats trying to time the market perfectly, as airline pricing remains highly volatile and unpredictable.
Seasonal Price Fluctuations
Denver to Chicago flights experience significant seasonal variation. Summer months (June through August) represent peak travel season, with prices typically 30-50% higher than shoulder seasons. Spring break periods and summer vacations drive family travel, while business travel remains steady year-round. If your schedule permits, traveling in September or early October offers excellent value as summer crowds diminish but weather remains pleasant.
Winter months present mixed opportunities. December sees elevated prices due to holiday travel, but January through early February offers some of the year’s cheapest fares as post-holiday travel demand plummets. Late February and early March bring moderate pricing before spring break season begins. Thanksgiving and Christmas weeks command premium prices, sometimes doubling or tripling standard fares.
Avoid traveling during major Chicago events like the Chicago Marathon (October) or major conventions, which can artificially inflate prices. Conversely, traveling during Denver’s slower periods—such as early November after summer tourism ends but before holiday season begins—often yields excellent deals.
Money-Saving Strategies
Beyond basic booking timing, several strategies maximize your savings on Denver to Chicago flights. Flexibility with your travel dates represents the single most powerful money-saving tool. Being willing to fly Tuesday through Thursday instead of Friday can save 20-40% on fares. Similarly, flying early morning or late evening flights often costs significantly less than midday departures.
Explore both Chicago airports strategically. Chicago Midway International (MDW) frequently offers cheaper fares than O’Hare (ORD), though Midway’s location requires additional ground transportation time. Calculate the total cost including ground transportation before assuming the cheaper airfare is the best option. For some travelers, paying slightly more for an O’Hare flight saves money when accounting for Midway’s distance from downtown Chicago.
Consider connecting flights on this route, though the economics typically don’t favor connections for a 1,000-mile distance. However, if you’re combining this trip with another destination, routing through a hub city might unlock better overall pricing. Consult best airlines for long flights recommendations when evaluating routing options.
Join airline frequent flyer programs and credit card loyalty schemes. United MileagePlus, Southwest Rapid Rewards, and Delta SkyMiles all offer opportunities to earn free flights or upgrades on this route. Airline credit cards often include sign-up bonuses sufficient for a free ticket after meeting minimum spending requirements. Even occasional flyers benefit from these programs through award flight opportunities.
Bundle your booking with hotels and rental cars through airline partner programs. Some carriers offer discounted rates when booking flights with accommodations, effectively reducing your overall trip cost. Price comparison across bundled and separate bookings ensures you’re getting genuine savings rather than inflated hotel rates.
Alternative Airports and Routes
While Denver International and Chicago’s major airports dominate this market, exploring alternatives occasionally reveals opportunities. Denver International (DEN) remains your primary option from Denver, as Colorado Springs Airport (COS) sits 80 miles south and typically offers no price advantage for Chicago-bound travelers despite lower airport fees.
From Chicago’s perspective, O’Hare (ORD) and Midway (MDW) represent primary options. O’Hare, as a major international hub, sometimes offers better pricing due to higher volume and competition. Midway, operated by Southwest as a focus city, frequently features competitive Southwest fares. Comparing both airports is essential before booking.
Connecting flights through hub cities like Dallas (see flights from Dallas to Chicago for comparative analysis), Denver to Las Vegas, or other southwestern hubs rarely offer savings on the Denver to Chicago route due to the relatively short distance. However, if you’re building a multi-city itinerary, routing through a connecting city might optimize your overall trip cost.
Comparing Flight Options
Effective flight comparison requires examining multiple factors beyond base price. Total journey time—including ground transportation, check-in, security, and boarding—should factor into your decision. A significantly cheaper flight with an inconvenient departure time might waste hours compared to a slightly more expensive convenient option.
Baggage allowances dramatically impact total cost. Carriers included two free checked bags (Southwest, some United premium economy) versus those charging $30-40 per bag fundamentally change the economics. If you’re checking luggage, Southwest’s included bags often make their fares superior despite higher base prices.
Seat selection fees, preferred seating charges, and other ancillary fees add up quickly. Budget carriers often quote impressively low base fares while charging for everything else. Requesting compensation for airline flight delays becomes complicated with budget carriers, though your rights remain protected under Department of Transportation regulations.
Loyalty program benefits offer significant value for frequent Denver to Chicago travelers. Earning status with United, for example, can unlock free upgrades, priority boarding, and lounge access on this route. Over a year of monthly travel, these benefits might equal the value of a free ticket.
Schedule flexibility extends beyond booking dates. Red-eye flights departing Denver at 10 PM and arriving in Chicago at 5:30 AM often cost 40-50% less than equivalent daytime flights. For some travelers, sleeping on the plane and arriving refreshed justifies the inconvenient schedule. However, arriving early morning limits your first day in Chicago, potentially wasting vacation time.
Consider your ground transportation strategy in Chicago. O’Hare connects directly to Chicago’s CTA Blue Line, providing rapid downtown access for approximately $5. Midway also connects via CTA, though with a slightly longer journey. Rideshare services (Uber, Lyft) from Midway often cost $25-35, while O’Hare rideshare typically runs $20-30. These factors should influence your airport selection decision alongside airfare differences.
FAQ
How far in advance should I book Denver to Chicago flights?
For optimal pricing, book 2-3 months in advance for standard travel. For peak summer season, aim for 4-6 weeks advance booking. However, last-minute deals occasionally emerge within 2 weeks of departure, particularly for mid-week flights. Set up price alerts rather than targeting a specific booking window.
What’s the cheapest day of the week to fly Denver to Chicago?
Tuesday through Thursday typically offer the cheapest fares, with Tuesday and Wednesday generally being lowest. Friday and Sunday flights command premium prices due to weekend leisure travel demand. Overnight or very early morning flights cost significantly less than afternoon departures.
Are budget airlines worth it for Denver to Chicago?
Budget airlines like Frontier can offer excellent value if you’re traveling with only a personal item. However, once you factor in baggage fees ($35-45 per bag), seat selection fees ($15-25), and other ancillaries, traditional carriers like Southwest often prove more economical for typical travelers. Calculate your complete trip cost before booking based on your specific luggage needs.
Which Chicago airport is cheaper to fly into?
Midway (MDW) frequently offers lower fares, particularly for Southwest flights, but O’Hare (ORD) sometimes provides better pricing due to higher volume and competition. Compare both airports for your specific travel dates, accounting for ground transportation costs. O’Hare’s better public transit access can offset slightly higher airfare.
Can I save money with connecting flights Denver to Chicago?
For the Denver to Chicago route, connecting flights rarely offer savings due to the relatively short 1,000-mile distance. However, if you’re building a multi-city itinerary, routing through a hub might optimize overall costs. Compare direct and connecting options for your specific trip.
How much do baggage fees cost on Denver to Chicago flights?
First checked bag fees range from $0 (Southwest, some United premium) to $35 (most budget carriers). Second bags typically cost $45-50. Carry-on bags are generally free except on ultra-low-cost carriers like Spirit. Factor these fees into your total trip cost calculation.
What’s the flight duration from Denver to Chicago?
Direct flights typically take 2 hours 45 minutes to 3 hours 15 minutes, accounting for the approximately 1,000-mile distance and typical flight patterns. Connecting flights obviously take significantly longer, generally 4-6 hours or more depending on layover duration.
