Home / Flights / DEN to FLG
DEN FLG · 503 mi · 1h 40m

Denver to Flagstaff Flights

Everything you need to know about the DEN → FLG domestic route — flight time, airlines, fares, and booking tips. Track your flight in real time with TripTrack.

$80-$140 round trip · 15+ daily flights · Updated March 2026


✈️ Route Overview

Key facts for the Denver to Flagstaff route

📏
Distance
503 miles (810 km)
⏱️
Avg Flight Time
1h 40m
🕐
Timezone Change
-1 hour
✈️
Daily Flights
15+
💰
Typical Fare
$80-$140 round trip
🌙
Red-Eye Available
No overnight flights on this route

🛫 Airlines on This Route

Carriers operating DEN → FLG flights

Airline Notes
Delta SkyMiles frequent flyer program
American Airlines AAdvantage frequent flyer program
United MileagePlus frequent flyer program
Southwest Rapid Rewards — bags fly free
Alaska Airlines Mileage Plan — generous earning rates
JetBlue TrueBlue — free snacks, above-average legroom

💡 Booking Tips

How to get the best deal on Denver to Flagstaff flights

📅

Best Days to Fly

Avoid Monday and Friday peak business travel; midweek is cheaper

💰

Fare Range

$80-$140 round trip. Book 3–6 weeks in advance for domestic routes, 2–3 months for international.

🌙

Red-Eye Flights

✗ Not available

No overnight options on this route — plan for daytime travel.

📱

Track Your Flight

Once booked, TripTrack automatically imports your flight from your confirmation email. Real-time gate changes and delay alerts — no manual entry needed.


🧳 Travel Tips for This Route

Practical advice from frequent travelers on the DEN → FLG route

  • 1 JetBlue offers free snacks and above-average legroom in Economy.
  • 2 Alaska Airlines has a generous mileage program for West Coast routes.


📱 Real-Time Flight Tracking

Track Your DEN → FLG Flight — Automatically

TripTrack monitors your flight in real time — gate changes, delays, and departure updates sent to your phone the moment they happen. Connect your Gmail once and your trips appear automatically. No manual entry.


Frequently Asked Questions — Denver to Flagstaff Flights

How long is the flight from Denver to Flagstaff?

The average flight time from Denver (DEN) to Flagstaff (FLG) is 1h 40m. This is an estimate including taxi, climb, and descent time — actual flight time may vary based on winds and routing.

Which airlines fly from Denver to Flagstaff?

Airlines operating the DEN to FLG route include Delta, American Airlines, United and 3 more. Check each airline's website for current schedules and availability.

How far is Denver from Flagstaff?

The great-circle distance from Denver to Flagstaff is 503 miles (810 km). This is the straight-line distance — actual flight paths may be slightly longer.

What are the cheapest days to fly from Denver to Flagstaff?

Avoid Monday and Friday peak business travel; midweek is cheaper. Fares on this route typically range $80-$140 round trip.

Is there a time zone change flying from Denver to Flagstaff?

Yes — there is a -1 hour when flying from Denver to Flagstaff. TripTrack automatically shows local times for both your departure and arrival airports.

Are there red-eye flights from Denver to Flagstaff?

No, there are currently no overnight (red-eye) flights on the DEN to FLG route. All flights operate during daytime hours.

How can I track my Denver to Flagstaff flight in real time?

TripTrack automatically tracks your DEN to FLG flight — showing real-time gate changes, delays, and departure updates. Connect your Gmail once and your booking confirmation is imported automatically. Available free on iOS and Android.