LoDo (Lower Downtown) + Union Station
Historic 1881 Union Station (lobby is free) + LoDo brewery district. Wynkoop Brewing (1988 first craft brewpub) + Great Divide Brewing.

Denver International Airport (DEN) · USA
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Quick answer
Entry
Same USA rules — ESTA or visa required. International at DEN clear US immigration (Concourse A international). DEN is at 5,280 ft elevation — drink water on arrival + don't overdo it day one.
Into town
RTD A Line train (to Union Station): 37 min, USD 10.50.
Time outside
4–5 hours in the city (stay close)
Times from DEN arrivals. Check entry rules for your passport before you fly.
The sights in Denver worth leaving the airport for.
Historic 1881 Union Station (lobby is free) + LoDo brewery district. Wynkoop Brewing (1988 first craft brewpub) + Great Divide Brewing.
World-famous outdoor concert venue carved into red sandstone. Free entry to amphitheatre when no concerts. 30 min west of Denver. Hike at sunrise.
Photo: Unknown author, CC BY-SA 3.0, via Wikimedia Commons.
Botanic Gardens (USD 19) features Japanese garden + 24 themed gardens. City Park has free zoo (USD 25) + Museum of Nature & Science (USD 25).
Pedestrian + free shuttle bus 16th Street Mall. State Capitol building with free guided tours (Mon-Fri). Free walking.
Pick the plan that fits the time between your flights.
4–5 hours in the city (stay close)
Insider tip
DEN is 38km from downtown — RTD A Line train is the fastest fast option (USD 10.50, 37 min). The station is inside the terminal. For 6+ hour layovers: Red Rocks Amphitheatre (Uber from downtown, USD 25 each way) is the iconic Denver experience.
| Mode | Cost | Time |
|---|---|---|
| RTD A Line train (to Union Station) | USD 10.50 | 37 min |
| Taxi / Uber / Lyft | USD 55–85 | 35–55 min |
Green chile burrito at Sam's No. 3 (1927, original American diner). Bison burger at Buckhorn Exchange (Denver's oldest restaurant since 1893). Craft beer at Wynkoop (founded by Mayor John Hickenlooper).
0–45 min
Clear passport control
Only leave the airport if your passport and visa allow entry; see the entry note above.
45–90 min
Into Denver: RTD A Line train (to Union Station)
37 min, USD 10.50.
90–210 min
LoDo (Lower Downtown) + Union Station
Historic 1881 Union Station (lobby is free) + LoDo brewery district. Wynkoop Brewing (1988 first craft brewpub) + Great Divide Brewing.
210–270 min
Eat before you head back
Green chile burrito at Sam's No. 3 (1927, original American diner). Bison burger at Buckhorn Exchange (Denver's oldest restaurant since 1893). Craft beer at Wynkoop (founded by Mayor John Hickenlooper).
270–360 min
Back to Denver International Airport
Head back to Denver International Airport by RTD A Line train (to Union Station) (37 min, USD 10.50). Be at the airport at least 2 hours before your flight.
Same USA rules — ESTA or visa required. International at DEN clear US immigration (Concourse A international). DEN is at 5,280 ft elevation — drink water on arrival + don't overdo it day one. Check the rules for your own passport before you fly.
4–5 hours in the city (stay close). Getting into Denver by RTD A Line train (to Union Station) takes 37 min each way.
RTD A Line train (to Union Station): 37 min, USD 10.50. Taxi / Uber / Lyft: 35–55 min, USD 55–85.
Skip the taxi rank and lock in your fare before you land.
Pre-book a fixed-price transfer
Our pickDriver waits at arrivals with your name, tracks your flight, and the price you see is the price you pay. English-speaking, fixed price. No surge, no haggling at 2am.
Check transfer pricesRenting a car instead? Compare rentals with free cancellation.Lock in a few experiences before you go — the good ones sell out.
Tours, tickets & day trips
Our pickGetYourGuide has the deepest catalogue for Denver and free cancellation on most experiences — book now, decide later.
Browse Denver
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A day-use hotel near the airport is a great option for a 6-hour layover.
Find hotels in Denver
Hotels, hostels & more · Expedia
See each airline’s route map: where else it flies from DEN.
Flights to Denver from 92 cities: fares and airlines →
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01
Same USA rules — ESTA or visa required. International at DEN clear US immigration (Concourse A international). DEN is at 5,280 ft elevation — drink water on arrival + don't overdo it day one.

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RTD A Line train (to Union Station): 37 min, USD 10.50.
Photo: Artem Yellow on Pexels.
03
Head back to Denver International Airport by RTD A Line train (to Union Station) (37 min, USD 10.50). Be at the airport at least 2 hours before your flight.
Tours, tickets and day trips that fit between your flights.
Daylight in Denver runs from about 9.2 hours in Dec to 14.8 in Jun. Enough of a difference that a winter stopover gives you noticeably less usable time outside than a summer one.