Cost Of First Class Stamp 2024 Usa. Washington, dc — today, the u. See forever postage stamp prices and other postage rates.

For large envelopes (flats) up to 15.994 oz, postage prices vary based on. Send 1 oz letters or postcards around the world with one global forever ® stamp, which currently costs $1.65 and never expires, even if the postage price goes up.