How to find cheap flights to to Denver?
🌄 Searching for low fares to Denver (DEN) is easier than most travelers expect. This domestic-focused guide covers everything needed to save on flights to the Mile High City — booking windows, cheapest months, nonstop airline options with prices, airport strategy, reward-card hacks, last-minute tactics, baggage fees, and real fare examples.
🕒 Best Times to Book Flights to Denver
Flying Tuesday, Wednesday, or Saturday and choosing first-morning departures typically cuts $25–$70 off roundtrip totals.
📉 Cheapest Month to Fly to Denver
The most affordable months for domestic fares into DEN are September, early November, and late January after the holiday crowds taper off.
✈️ Nonstop Flights — Airlines & Typical Prices
Approximate roundtrip economy pricing (illustrative):
| Route | Airlines | Typical Roundtrip |
|---|---|---|
| PHX → DEN | Frontier, Southwest | $68–$129 |
| DFW → DEN | American, Southwest, United | $92–$168 |
| LAS → DEN | Frontier, Southwest, United | $59–$132 |
| ATL → DEN | Delta, Frontier, United | $118–$199 |
| LAX → DEN | United, American, Delta | $89–$176 |
Denver is a major hub for United and Frontier, creating strong domestic competition and frequent price dips.
🔥 How to Find Flight Deals to Denver
- 🔔 Set price alerts on Google Flights and track multiple nearby departure airports for better deals.
- 🎟️ Frontier flash sales often include DEN — verify baggage totals before comparing with legacy carriers.
- 📅 Search using monthly calendars to reveal surprisingly cheap shoulder-season dates.
- 🔀 Look at one-way combos — mixing airlines can cut 15–25% off roundtrip costs.
- 💳 Compare cash vs. reward pricing in travel portals; Denver frequently sees low fixed-value redemptions.
🛬 Denver Airport Guide (DEN)
Denver International (DEN)
- Massive domestic route network with excellent award-seat availability.
- Easy airport rail link to downtown via the A-Line.
- Lounges: United Club, Delta Sky Club, American Admirals Club.
💳 Credit Card & Reward Tips
- Use airline-branded cards to avoid bag fees, especially on United or American.
- Chase and Amex travel portals often list competitive DEN pricing during promos.
- Redeem points on Southwest when traveling with checked luggage — the included bags often beat a low base fare elsewhere.
- Pick cards offering trip-delay coverage for winter travel, when storms can affect schedules.
⏳ Last-Minute Flights & Tactics
- 🟦 United and Frontier frequently release last-minute discounts on lightly sold flights.
- 📱 Check airline apps hourly — Denver often sees dynamic fare drops within 48 hours.
- 🔁 Redeem points for better last-minute value, especially with flexible programs like UR/MR.
🛡️ Travel Insurance — When It’s Useful
Winter weather in Colorado can impact travel reliability. Insurance is worth considering from December–March, especially for ski trips or multi-segment itineraries. Many premium travel cards include built-in protections.
💼 Baggage Fees — What to Expect
- American / United / Delta: ~$30–$35 for first checked bag
- Southwest: two checked bags free
- Frontier: charges for both carry-on and checked bags — add before booking
💶 Price Examples (Roundtrip, Economy — Illustrative)
| From | Typical Roundtrip |
|---|---|
| PHX → DEN | $68–$129 |
| LAS → DEN | $59–$132 |
| DFW → DEN | $92–$168 |
| LAX → DEN | $89–$176 |
✔️ Quick Checklist Before Booking
- Check fares 4–7 weeks out for sweet-spot pricing.
- Compare one-way combos for extra flexibility.
- Evaluate total trip cost — especially bags on Frontier.
- Use travel-reward cards for added protections and point savings.
Helpful tools: Google Flights • Kayak • Skyscanner