Cheap flights from Denver to South Portland

Denver
DEN
Portland
PWM

Flight deals from Denver to South Portland

Below you can see the best deals on flights Denver — South Portland for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 1 October, from $254.

Top 10 cheap flights from Denver to South Portland

About the Denver — South Portland flight

Looking for cheap flights from Denver to South Portland? Compare fares from different airlines, check the flight schedule and travel time — and book your Denver — South Portland ticket online at the best price.

The route has direct flights — around 11 flights per week, flights are operated by United Airlines, a nonstop flight takes about 3 h 55 min, the distance between the cities is around 2,904 km.

Planning your trip? You may find our South Portland travel guide, how to get from the airport into town and South Portland weather forecast useful. To catch a low fare, use the low-price calendar and the monthly price chart on this page.

Facts about this route

from $253Min. price
FebruaryCheapest
SeptemberPeak season
YesDirect flights
2,904 kmDistance
3 h 55 minTravel time
1Airlines
11 / wkFlights

Flight schedule from Denver to South Portland

The table shows direct flights from Denver to South Portland on the selected date. The flight takes approximately 3 h 55 min. Regular flights are operated by United Airlines. Departures from Denver International Airport and Centennial Airport airports, arrivals at Portland International Jetport.

For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.

Thu, 27 August
Any time
Last update: 25 Aug 2026

Flight ticket prices by day: Denver — South Portland

Below is a calendar of the lowest flight ticket prices for Denver — South Portland by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $253 in February, and the most expensive are around $356 in September. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

 
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Prices by month

Average one-way fares from Denver to South Portland by month. Tickets are usually cheapest in October (around $185) and priciest in June (about $246) — use the table and chart below to pick the best time to fly.

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
Jan$213mediumMay$218mediumSep$190low
Feb$204mediumJun$246highOct$185low
Mar$213mediumJul$242highNov$213medium
Apr$194lowAug$223mediumDec$232high

Some values are estimated based on seasonality.

When to fly

Weather in South Portland: it is warmest in July (up to 25 °C on average) and coolest in January (around 1 °C). The driest month is September.

Tickets are usually cheapest in February and most expensive in September. Compare prices and weather by month in the charts below to pick the best time to fly.

Temperature · South Portland

Dry and wet days · South Portland

Wind speed and direction · South Portland

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How to get the best deal on a Denver — South Portland ticket

  • Book ahead: fares for Denver — South Portland are usually lower 3–8 weeks before departure than at the last minute.
  • Play with your dates — Tuesday, Wednesday and Saturday departures are often cheaper than Friday and Sunday.
  • Denver is served by more than one airport — compare fares and travel time to each before you book.
  • Flights Denver — South Portland operate on Sundays, Mondays, Tuesdays, Thursdays, Fridays and Saturdays — keep that in mind when picking your travel dates.
  • The cheapest month to fly to South Portland is usually February — plan your trip around it if your dates are flexible.
  • Compare direct and connecting flights: nonstop is faster, while a connection is sometimes noticeably cheaper.
  • Watch the low-price calendar and the monthly price trend on this page — they make it easier to catch a good date.
  • Travelling light? Pick a cabin-baggage-only fare — tickets without checked luggage are noticeably cheaper.
  • Get to the airport in good time — about 2–3 hours before an international departure and roughly an hour before a domestic one.

Airlines

Flights on the Denver — South Portland route are operated by 1 airline; United Airlines runs the most flights (around 100% of all flights). Compare carriers, flight shares and schedules below.

  • United AirlinesUA
    4x/week
    WebsiteFleet: 956165M pax/year
    • Direct flight DEN → PWM4x/week
      Duration
      3h 58m
      Days
      MTWTFSS
    100.0%Open →

Cities and airports on the Denver — South Portland route

Flights Denver — South Portland depart from Denver International Airport and Centennial Airport and arrive at Portland International Jetport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure

Denver

DEN
United States
About the cityHow to get thereWeatherAll about the country United States
Arrival

South Portland

PWM
United States
About the cityHow to get thereWeatherAll about the country United States
Departure airports
Arrival airports

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Frequently asked questions about the Denver — South Portland flight

How long is the flight from Denver to South Portland?

A nonstop Denver — South Portland flight takes about 3 h 55 min — the distance between the cities is around 2,904 km.

How far is it from Denver to South Portland?

The distance from Denver to South Portland is about 2,904 km, which a nonstop flight covers in around 3 h 55 min.

Are there direct flights from Denver to South Portland?

Yes, there are nonstop flights Denver — South Portland — around 11 flights per week.

Which airlines fly from Denver to South Portland?

Airlines operating Denver — South Portland include United Airlines. See the full list with schedules in the "Airlines" section on this page.

Which airports do Denver — South Portland flights use?

Flights from Denver depart from Denver International Airport, Centennial Airport, and arrive at Portland International Jetport. If a city has more than one airport, check which one your ticket uses before you travel.

How much is a ticket from Denver to South Portland?

The price of a Denver — South Portland ticket depends on your travel date, season and demand: it is usually cheapest to fly in February, and most expensive in September. Tickets typically cost between $253 and $356. Check the current lowest fare and low-price calendar on this page.

When is the best time to book flights Denver — South Portland?

Flights Denver — South Portland are usually cheaper when booked in advance — a few weeks before departure and away from peak dates; the most budget-friendly month to fly is February. Compare prices by month in the price trend chart on this page.

How can I find the cheapest flights from Denver to South Portland?

To catch a low fare Denver — South Portland, book a few weeks in advance, keep your dates flexible, and compare airlines and connecting options. The low-price calendar and monthly price chart on this page show the cheapest days and months at a glance: the most budget-friendly month to fly is usually February.

How early should I arrive at the airport?

For international flights, plan to be at the airport about 2–3 hours before departure, and around an hour before a domestic flight. Allow extra time during busy travel seasons and at large hubs, where check-in and security lines can be longer.

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Where else you can fly from South Portland

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New York CityWashington, D.C.ChicagoPhiladelphiaAtlantaCharlotteDetroitMinneapolisDallasOrlandoHoustonSan FranciscoLos AngelesTampaSyracuse

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