Flights Raleigh/Durham → St Louis
As of September 2026, economy flights from Raleigh/Durham to St Louis have a typical range USD 434–9174, median USD 479. Full range across all 109 offers: USD 209–9805. We found 60% of 109 offers from budget carriers (around USD 434) and 40% from full-service carriers (around USD 736).
Preview snapshot — prices change. Search for live results.
Data collected by LetsFG's multi-source price checks — every airline and the major booking sites checked for this route. How we collect data →
Best offers by airline: Raleigh/Durham → St Louis
Based on 109 offers · September 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: Raleigh/Durham → St Louis
Add-on pricing from the cheapest available offer per airline · September 2026 · USD
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| American Airlines | Included | USD 100 | — |
| Frontier Airlines | — | — | — |
| Southwest | Included | USD 90 | — |
| Alaska Airlines | Included | — | — |
Fees are estimates from the prices we checked and may not reflect your specific itinerary, booking class, or payment method. Run a live search for exact pricing.
How much do flights from Raleigh/Durham to St Louis cost?
Based on 109 offers · September 2026
Raleigh/Durham to St Louis flights ranged from USD 209 to USD 9805 across 109 offers analyzed in September 2026. Two fare clusters detected: budget fares around 689 and premium fares around 9325 The chart below shows how prices distributed across all 109 offers.
These 109 offers (September 2026) span multiple departure dates and booking windows — your travel dates may fall anywhere in this distribution. Only a live search shows where your specific trip lands.
50% of offers priced between USD 434 and USD 736
What hidden fees do Raleigh/Durham to St Louis flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on Raleigh/Durham to St Louis routes. The breakdown below is based on 109 offers analyzed in September 2026.
| Carrier | Avg fee (USD) | % of base fare |
|---|---|---|
| AA | 110 | 24% |
| F9 | 10 | 0% |
| WN | 90 | 12% |
| AS | 10 | 0% |
American Airlines: base ~USD 324 + fees USD 110 = ~USD 434 total. Frontier Airlines: base ~USD 9164 + fees USD 10 = ~USD 9174 total.
American Airlines's USD 110 ancillary fees narrow the gap with Frontier Airlines's lower-fee model — the USD 8840 base difference shrinks to USD 8740 after fees. Always compare total cost, not just the advertised base fare.
Estimates based on median total minus average ancillary fee. Actual base fares vary by itinerary.AA charges 11.0x more in ancillary fees than AS on this route. Compare total-cost options when booking.
Run your search to see itemized fees for your itineraryWhich airline is cheapest from Raleigh/Durham to St Louis?
7 airlines flew Raleigh/Durham to St Louis in this dataset. The route shows a clear split between low-cost and full-service carriers. Knowing the airline isn't enough — the typical fare range below shows how far prices swing on each one. Median and range include all fees we recorded.
| Airline | Offers | Typical range (USD) | Median (USD) | Fees (USD) |
|---|---|---|---|---|
 34|30 | 1 | — | 209 | n/a |
 F9|34|30 | 1 | — | 387 | n/a |
 F9|34 | 1 | — | 404 | n/a |
 American Airlines | 62 | 434–504 | 434 | 110 (25%) |
 Southwest Airlines | 19 | — | 736 | 90 (12%) |
 Frontier Airlines | 16 | 9169–9174 | 9174 | 10 (0%) |
 Alaska Airlines | 9 | 1340–9805 | 9805 | 10 (0%) |
Where do the best Raleigh/Durham → St Louis prices come from?
We checked direct airlines, travel agencies, and meta-search for this route. On this route the lowest median came from meta-search sources, but the cheapest channel shifts by route and date — which is exactly why a live search across all of them wins.
We compare every airline and the major booking sites but never disclose which — that's our edge. Prices are the ones we observed and aren't official data from any platform. Run a live search and we bring you the cheapest, wherever it is.
Key facts: Raleigh/Durham to St Louis flights
- Full-service carriers on Raleigh/Durham–St Louis cost 0.5x more than budget airlines (USD 2248 vs USD 4955 median; overall median USD 479).
- AA charges 11.0x more in ancillary fees than AS — USD 110 vs USD 10 avg per booking.
- The same route priced USD 527 apart depending on where it was booked — the lowest median was USD 209. We search every airline and the major booking sites at once so you always see that lowest price.
Frequently asked questions
- How much does a flight from Raleigh/Durham to St Louis cost?
- Based on 109 offers analyzed, Raleigh/Durham to St Louis flights range from USD 209 to USD 9805, with a median price of USD 479. Search for your specific dates →
- What hidden fees should I expect on Raleigh/Durham to St Louis flights?
- On average, ancillary fees (bags, seat selection) add USD 83 to the base fare on Raleigh/Durham to St Louis flights. See itemized fees for your itinerary →
- Which airline is cheapest on Raleigh/Durham to St Louis including all fees?
- 34|30 has the lowest median fare on Raleigh/Durham to St Louis at USD 209 (median across 1 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest Raleigh/Durham–St Louis flights?
- It depends on your dates — no single site is always cheapest. We search every airline and the major booking sites at once (travel agencies and meta-search included) and surface whichever is lowest; the best median in this snapshot was USD 209. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on Raleigh/Durham to St Louis routes?
- Raleigh/Durham to St Louis has 7 airlines competing, creating a price range from USD 209 to USD 9805 across 109 offers. There are two distinct fare clusters on this route: budget options and premium fares. Find where your trip lands in the distribution →
7 airlines, two price clusters — find which fits your budget
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