Best Flights starting from $259
Economy
Greenville (GSP)
Sat, May 9
Roundtrip
Denver (DEN)
Tue, May 19
Economy
Greenville (GSP)
Mon, May 4
Roundtrip
Denver (DEN)
Thu, May 14
Economy
Greenville (GSP)
Fri, May 8
Roundtrip
Denver (DEN)
Mon, May 18
Economy
Greenville (GSP)
Tue, May 5
Roundtrip
Denver (DEN)
Fri, May 15
Economy
Greenville (GSP)
Thu, May 7
Roundtrip
Denver (DEN)
Sun, May 17
Economy
Greenville (GSP)
Sun, May 10
Roundtrip
Denver (DEN)
Wed, May 20
Other Destinations
Greenville (GSP) to New York (JFK) in May from $229
From $229
Greenville (GSP) to Salt Lake City (SLC) in May from $329
From $329
Greenville (GSP) to Nassau (NAS) in May from $369
From $369
Greenville (GSP) to Key West (EYW) in May from $422
From $422
Greenville (GSP) to Dublin (DUB) in May from $551
From $551
Greenville (GSP) to Key West (EYW) in May from $868
From $868
Flights from Other Cities
San Diego (Any) to Denver (DEN) in May from $51
From $51
Dallas (DFW) to Denver (DEN) in May from $58
From $58
Miami (MIA) to Denver (DEN) in May from $88
From $88
Orlando (MCO) to Denver (DEN) in May from $144
From $144
Washington, D.C. (IAD) to Denver (DEN) in May from $163
From $163
Buffalo (BUF) to Denver (DEN) in May from $190
From $190
✈️ Flight Guide: Greenville (GSP) → Denver (DEN)
Complete travel information for your May journey
Departing from Greenville (GSP) FAQs
The most reliable transit option is the A Line commuter rail from Denver Union Station to Denver International Airport (DEN), taking about 37 minutes. Rideshares and airport shuttles are widely available; expect 30–45 minutes by car without heavy traffic. For budget travelers, RTD light rail + bus combinations can reduce cost but add time.
For domestic economy flights, arrive at least 90 minutes before departure during off-peak months and 2–2.5 hours during peak travel seasons like June–August and December. Allow extra time for checked bags, TSA security lines, and the airport's large layout. Use TSA PreCheck if available to cut wait times.
DEN offers a mix of on-site economy parking and off-site lots with shuttle service; off-site parking is usually the cheapest option by daily rate. Book long-term parking in advance and compare off-airport lots for economy travelers to save up to 40%. For short trips, consider ride-share drop-offs to avoid parking fees.
Low-cost carriers like Frontier and Spirit often list the cheapest base economy fares from Denver International Airport (DEN), while Southwest provides good value with two free bags. Legacy carriers (United, American, Delta) may have competitive sale fares; compare all carriers and use flexible dates to find the cheapest economy flights.
Yes — November (excluding Thanksgiving week) is often a shoulder-season month with discounted economy fares on many routes out of Denver International Airport (DEN). Booking 3–7 weeks in advance and being flexible midweek can find the cheapest flights. Peak holiday dates around Thanksgiving will be significantly more expensive.
DEN offers free Wi-Fi, multiple coffee shops, budget-friendly restaurants, and charging stations throughout concourses—helpful for economy travelers. There are designated budget-friendly lounges and pay-per-use lounges if you need a quiet space; family-friendly facilities and nursing rooms are also available.
Arriving at Denver (DEN) FAQs
Economy arrivals typically include standard deplaning procedures and may land at remote stands depending on carrier and airport. Be prepared for longer walks or bus transfers at some airports, and plan extra time for immigration and baggage claim if traveling internationally. For the cheapest fares, allocate at least 60–90 minutes after landing before making onward connections.
Yes — the cheapest economy fares (basic economy or unbundled tickets) often exclude checked bags and may even restrict carry-on size or number. Always check the airline's specific economy baggage policy before booking and add baggage online in advance to save compared to airport rates.
Enroll in expedited programs like Global Entry or Mobile Passport where available to shorten lines on arrival. If not enrolled, choose flights that arrive during off-peak hours and use automated passport control kiosks if eligible. For the cheapest economy fares, factor additional time for customs and connections.
Historically, January and September show fewer arrival delays at major U.S. hubs due to lower congestion, while winter months with storms (December–February) and peak summer (June–August) see more variability. Search 'cheap flights Denver January' or 'economy arrivals September' for seasonal scheduling advantages.
Most carriers charge extra for seat selection on the cheapest economy fares, though some allow free selection at check-in. If seat choice is important, calculate the total cost including seat fees when comparing economy deals. Consider booking a slightly higher economy tier if seat selection is necessary for comfort.
Arrival lounges are generally reserved for premium passengers, but many airports offer pay-per-use or credit-card lounge access that economy travelers can purchase. These lounges can help recover from long flights whether booked on the cheapest economy fares or higher fare classes.
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Events & Festivals Affecting Flight Prices from Denver International Airport (DEN)
Check event calendars when planning travel from Denver International Airport (DEN) and shift dates where possible to find cheap economy flights.
Best Time to Fly from Denver International Airport (DEN) — Cheapest Months & Booking Windows
Optimal months to fly cheaply from Denver International Airport (DEN) are typically January, February, September, and early November (excluding Thanksgiving). For domestic economy flights, book 1–3 months in advance; for international economy fares, aim for 2–6 months out. Use flexible-date search, midweek departures, and early-morning flights for lowest economy rates. CTA: Check price calendars and set alerts to find the best time to fly from DEN.
Direct vs. Connecting Flights from Denver International Airport (DEN) — Economy Class Tradeoffs
Direct (nonstop) flights from Denver International Airport (DEN) offer convenience and lower risk of missed connections but may cost more in economy class. Connecting flights typically yield the cheapest economy fares, especially when flying low-cost carriers or using alternate hubs. When choosing connecting itineraries, allow sufficient layover time (minimum 60–90 minutes domestic, 2–3 hours international) and factor in potential baggage transfer delays. CTA: Compare nonstop and one-stop economy options from DEN and choose the route that best balances price and schedule.
Airline Comparison for Economy Fares from Denver International Airport (DEN)
Compare airlines departing Denver International Airport (DEN) across total ticket price (fare + baggage + seat fees) to find the true cheapest economy option.
Seasonal Travel Tips for Economy Travelers — Denver International Airport (DEN)
Use these seasonal tips to plan and book cheap economy travel from Denver International Airport (DEN). Compare fares, set alerts, and travel flexible dates for the best savings.
Flight Times & Schedules — Typical Durations from Denver International Airport (DEN) for Economy Travelers
Typical Flight Durations
Cheap Flights — How to Find the Lowest Economy Fares from Denver International Airport (DEN)
Primary strategies to find the cheapest economy flights from Denver International Airport (DEN): 1) Use flexible-date calendars and +/- 3 day searches on Google Flights and OTAs; 2) Sign up for fare alerts and track flash sales from Frontier, Spirit, and Southwest; 3) Consider alternate nearby airports or one-stop itineraries to secure lower fares; 4) Book 1–3 months in advance for domestic economy routes and 2–6 months for international trips. CTA: Compare cheap flights from Denver now and set fare alerts to lock in the best economy deals.