Cheap flights from Chicago O'Hare to Raleigh-Durham International from $119
Updated 2026-07-26
646 miles great-circle distance, typically flown in 1h 42m with 5 airlines operating direct service from Chicago O'Hare (ORD) to Raleigh-Durham International (RDU). Fares on this corridor stay relatively stable across the year — booking 4–8 weeks ahead and choosing a midweek departure typically secures the best price.
Flying from Chicago O'Hare
Chicago O'Hare is one of America's two busiest hubs and the home base for both United and American — Terminals 1 and 2 belong to United, Terminal 3 to American, and Terminal 5 handles all international arrivals. The CTA Blue Line runs from a station at the airport to downtown Loop in around 45 minutes for $5. Winter weather drives chronic delays from late November through February, so build in connection padding through ORD between Thanksgiving and President's Day.
Arriving in Raleigh-Durham
Raleigh-Durham International serves the Research Triangle (Raleigh, Durham, Chapel Hill) and is 12 miles from each. There is no rail; GoRaleigh bus 100 reaches downtown Raleigh in 45 minutes for $1.25, GoTriangle bus 805 reaches downtown Durham. Fares to RDU peak around Duke and UNC graduations (May) and major basketball games (February–March); January and August are the cheapest.
Who flies ORD to RDU?
| Airline | IATA | Flight time | Cabin |
| United Airlines | UA | 1h 42m | Economy |
| American Airlines | AA | 1h 42m | Economy |
| Spirit Airlines | NK | 1h 42m | Economy |
| Frontier Airlines | F9 | 1h 42m | Economy |
| Delta Air Lines | DL | 1h 42m | Economy |
5 carriers fly direct on this corridor. Frequencies vary by season — summer and winter holiday peaks see additional flights.
Chicago to Raleigh-Durham FAQs
Direct flights from Chicago O'Hare (ORD) to Raleigh-Durham International (RDU) take approximately 1h 42m for the 646-mile journey, plus 30–60 minutes of taxi, climb and descent. Total airport-to-airport time depends on cruise winds and air-traffic queueing on approach.
5 carriers operate direct service from Chicago O'Hare (ORD) to Raleigh-Durham International (RDU): United Airlines, American Airlines, Spirit Airlines, Frontier Airlines and Delta Air Lines. Frequencies vary by season and carrier — United Airlines typically operates the highest weekly count on this corridor.
No — United States is domestic travel for US citizens. A US passport is not required for the 50 states, DC or US territories (Puerto Rico, US Virgin Islands, Guam, American Samoa, Northern Mariana Islands), though Real ID-compliant ID is required at TSA from May 2025.
Raleigh-Durham International (RDU) is the primary international airport for Raleigh-Durham. Allow 30–60 minutes for the ground transfer by train, express bus, taxi or rideshare depending on traffic and time of day. See the airport's official website for current train and shuttle timetables.